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Dentigerous cysts are characterised by the formation of cysts containing dental material with a variable level of development. They are the result of a distinct embryological phenomenon. Usually, they are of significant clinical relevance in horses, especially in tandem with ectopic tooth. Contrarily, supernumerary teeth or typical polyodontias usually have limited impact. In this case report, we describe the occurrence of a supernumerary first premolar (Triadan 105). Dissimilar to known scientific literature however was the formation of a cystic structure around the supernumerary tooth. Surgical removal of the dentigerous cyst is discussed, as are the possible causes for the formation of the cystic structure. Based on this case report, we suspect that the formation of a cystic structure may not be limited to atypical polyodontias, as they may also occur in supernumerary teeth.

Objective This study was performed to investigate the process of ectopic tooth formation. Methods A patient with an ectopic tooth was followed for 6 years. The tooth size and mineralization were evaluated by paranasal sinus computed tomography every 3 years. Results The ectopic tooth was present in the nasal crest of the maxilla and did not change significantly during the 6-year follow-up period. However, the patient developed a new ectopic tooth in the maxillary sinus (ETm). This tooth, located in the posterior wall of the left maxillary sinus, initially appeared as a small region of soft tissue on computed tomography. After 3 years, the area of mixed density had significantly increased, and some of it had significantly mineralized to form an ETm. After 6 years, the ETm had further mineralized and enlarged in situ. The width between the left and right sides of the ETm in 2018 (9.08 ± 2.09 mm) was significantly larger than that in 2015 (7.51 ± 2.18 mm), indicating that ETm formation is a gradual process of mineralization. Conclusion Ectopic teeth can gradually form by in situ mineralization after adolescence, suggesting that ectopic teeth are genetically regulated and result from a programmed formation process occurring at a specific time point.

To identify the preferred surgical approach (intra- or extra-oral) to remove an ectopic third mandibular molar (ETMM) according on its location and presence of an associated cyst or cutaneous fistula, and to determine the indications for a graft or osteosynthesis. A surgical practice questionnaire was distributed to oral and maxillo-facial surgeons attending a National Congress of the French Society of Stomatology, Maxillo-facial and Oral Surgery. A systematic review of the literature and meta-analysis was carried on Pubmed, Cochrane, Embase and ScienceDirect databases using the MeSH terms: “Ectopic teeth”, “Third molar”, “Mandibular”. One hundred and forty-three surgeons answered the questionnaire and the meta-analysis included 66 articles. From the questionnaire, the preferred surgical approach was intra-oral except when the ETMM was in the condyle, when it was extra-oral (69.5%; p

Ectopic tooth eruption in a non-dental area is a rare entity, and is most common in oral cavity. There have been a few case reports of teeth erupting in mandibular condyle, chin, palate, coronoid process, and maxillary sinus. Ectopic tooth in the maxillary sinus are found incidentally on routine radiological examination, same time they can be symptomatic and associated with pathologies usually dentigerous cyst or odontogenic keratocyst. Facial pain, purulent rhinorrhoea, epistaxis, headache, swelling, and epiphora-related naso-lacrimal duct obstruction can also be seen. By Caldwell-Luc procedure the ectopic teeth within the maxillary sinus are often removed. In this study, a case of ectopic maxillary third molar tooth on right maxillary sinus is presented.

Objective: Impacted teeth are important for plastic surgeons that frequently perform maxillofacial operations because of their tendency to affect dental occlusion, and thus, cephalometric results. Moreover, severe complications are also caused by the tooth and its surgical removal. In this study, retrospective analysis of 242 extracted teeth and 24 extracted roots was performed and an algorithmic approach to different types and the localizations of impacted teeth was presented. Possible complications and salvage procedures were also discussed. Material and Methods: A retrospective analysis of 128 patients who underwent impacted teeth removal surgery between 2013 and 2015 was performed. Mean age was 26 years (Range: 18–42 years), and the female to male ratio was 39/89. Sixteen of the patients were operated under regional nerve block, whereas the remaining were operated under general anesthesia. In 107 patients, the whole tooth was removed, whereas the residual root of the tooth was removed in 21 patients. In 89 patients, bone interventions like the creation of bone window or peridental milling to loosen the tooth were needed, whereas only oral mucosal incisions were performed in the remaining patients. Results: The most common onset symptom was localized pain, and the most common complications were swelling and edema. The most common extracted tooth was the mandibular 3rd molar. Lower lip hypoesthesia, which was continued up to eight months, was encountered in six patients who underwent mandibular 3rd molar extraction. Conclusion: In our opinion, a wide range of possible complications secondary to impacted teeth surgery makes them important for plastic surgeons who are more experienced than other disciplines, and learning teeth extraction is essential to learn in plastic surgery specialty training.

Background: Ectopic eruption of a tooth or osteoma rarely occurs within the maxillary sinus. Coexistence of these two rare entities in the maxillary sinus has never been reported in the English literature. Case Report: Herein, we present a 21 year-old male patient with osteoma and ectopic tooth in the left maxillary sinus treated with the removal of the ectopic tooth by endoscopic sinus surgery and excision of the osteoma by the Caldwell- Luc procedure. Conclusion: Unique coexistence of two different entities in the maxillary sinus is most likely due to pediatric facial trauma. Pediatric patients with maxillofacial trauma should be carefully watched for dental injury both clinically and radiologically.

Zusammenfassung. Wir berichten über einen 80-jährigen Patienten, der einen oberen Molar wegen Gesichtsscherzen entfernt hatte und im Verlauf eine Sinusitis maxillaris bei einem ektopischen Zahn entwickelte. Als Fieber und Nackenschmerzen auftraten, wurde eine eitrige Meningitis vermutet. Der unauffällige Liquor und der Nachweis im CT von typischen Verkalkungen um den Dens axis führten endlich zur korrekten Diagnose eines «Crowned Dens»-Syndroms.

Purpose: Ectopic tooth within the tooth bearing region is often noticed in clinical practice but ectopic eruption in non-dentate regions like maxillary sinus is rare. Rarer is the presence of multiple ectopic teeth involving both the maxillary incisors and canine and has not been reported yet. Method: A seventeen year old male presented with a complaints of dull pain on the right side of the face for past two years. Water’s view X-ray of PNS revealed dense non-specific opacification of the right maxillary sinus. Result: Antrostomy through Caldwell–Luc approach revealed three ectopic teeth in the right maxillary sinus. Later the teeth were identified to be central incisor, lateral incisor and canine. Conclusion: Rare finding of ectopic incisors in the maxillary sinus is reported and the need for interdisciplinary approach to patients is stressed upon.

The eruption of tooth other than the alveolar arch is called Ectopic Tooth. It is frequently encountered in the maxillary sinus. Facial pain is the most common presentation which is commonly misdiagnosed as chronic sinusitis. We present a case of a 47-year-old lady who was incidentally diagnosed to have an ectopic free lying canine in the maxillary sinus and discuss the various theories mentioned in literature predisposing to this condition.

Background Ectopic mandibular third molar is a rare clinical entity with incompletely known etiology. Here, we sought to delineate its epidemiological, clinical and radiographic characteristics, and therapy by integrating and analyzing the cases treated in our institution together with previously reported cases. Method A new definition and classification for ectopic mandibular third molar was proposed based on its anatomic location on panoramic images. Thirty-eight ectopic mandibular third molars in 37 patients and 51 teeth in 49 patients were identified in our disease registry and from literature (1990–2016), respectively. These cases were further categorized and compared according to our classification protocol. The demographic, clinicopathological and radiographic data were collected and analyzed. Results These ectopic teeth were categorized into four levels, 33 in level I(upper ramus), 32 in level II (middle ramus), 15 in level III (mandibular angle) and 9 in level IV (mandibular body). The common clinical presentations included pain, swelling and limited mouth opening, although sometimes asymptomatic. Most teeth were associated with pathological lesions. Treatments included clinical monitor and surgical removal by intra- or extraoral approach with favorable outcomes. Clinical presentations and treatment options for these teeth were significantly associated with their ectopic locations as we classified. Conclusions Ectopic mandibular third molars are usually found in patients with middle ages and in upper and middle ramus of mandible. Surgery is preferred to remove these ectopic teeth and associated pathologies when possible.

Eruption disturbances related to the position include ectopic eruption and transpositions. The occurrence of ectopic eruption is most commonly associated with maxillary incisors. The normal eruption, position and morphology of these teeth are crucial to craniofacial development, facial esthetics as well as phonetics. It is essential that the clinicians have thorough knowledge of the eruption disturbances in order to make an appropriate, as well as timely intervention, as dictated by the complexity of the problem. How to cite this article: Suresh KS, Uma HL, Nagarathna J, Kumar P. Management of Ectopically Erupting Maxillary Incisors: A Case Series. Int J Clin Pediatr Dent 2015;8(3):227-233.

Nasally ectopic teeth are rare, but can be a source of significant morbidity. Symptoms can include facial pain, nasolacrimal duct obstruction, fungal rhinitis, persistent rhinorrhea and episodic epistaxis. A nasally ectopic tooth should be considered as a differential diagnosis for a radiopaque lesion within the nasal cavity. This case illustrates the diagnosis and subsequent minimally traumatic recovery of a nasally ectopic tooth, believed to be an upper first premolar tooth, via an endoscopic approach.

Dental injury is one of the most common complications of tracheal intubation. Although teeth dislodged during tracheal intubation are usually found in the oral cavity, we encountered a case of a missing tooth found in the nasal cavity in an intubated patient. A 62-year-old man with 4 loose teeth in the upper jaw was scheduled for laparoscopic hernia repair. After our second attempt at insertion of a nasogastric tube via the left naris, we discovered that a tooth had been dislodged. A lateral-view radiograph revealed the dislodged tooth in the nasal cavity. The ectopic tooth was removed by an otorhinolaryngologist.

An ectopic tooth in the nasal cavity is a rare phenomenon, especially on the inferior turbinate. In most of the reported cases, no etiological explanation of the intranasal teeth has been suggested or found. In children, intranasal ectopic teeth are usually associated with cleft lip and alveolus. Here, we report a rare case of a pediatric patient with unilateral nasal obstruction due to an intranasal ectopic tooth originating from the inferior turbinate without any facial and dental deformities. This case is unique due to the unusual location of the ectopic tooth and its presentation in a child without facial and dental deformities.

Abnormalities in tooth morphology and number are not uncommon. However, an exact clone of a normal tooth is a recondite clinical finding. Presence of supplementary teeth is mostly noticed in maxillary anterior, molar or premolar region, followed by mandibular premolar region in descending order of its site of occurrence. Supplemental tooth in mandibular anterior has a low prevalence of 0.01%. This paper reports one such rare case of nonsyndromic incisive jumeaux in mandibular anterior region during mixed dentition period.

Aim The incidence of impacted maxillary canines in Caucasians reportedly ranges from 1% to 3%. The objectives of this study were to estimate the prevalence and determine the characteristics of impacted maxillary canines in southern Chinese children and adolescents. Methods This retrospective audit involved 533 subjects with impacted maxillary canines that had been treated between February 1982 and February 2009. A customized data entry form was prepared to record and evaluate the status of impacted canines. Results The 533 subjects (327 females and 206 males) with impacted maxillary canines, who were identified from the population of 26 039 subjects, represented a prevalence of 2.1%. Four hundred and forty-two (82.9%) of these subjects had unilaterally impacted canines, while 91 (17.1%) of them had bilateral impactions. In 442 subjects with unilateral canine impactions, 220 (49.8%) were buccally placed, 194 (43.9%) were palatally placed, and 28 (6.3%) of the canines were found to lie within the arch. Conclusions The overall prevalence of impacted maxillary canines in this study of 2.1% was similar to the figures quoted for Caucasian populations. In subjects with unilateral impactions, buccally impacted canines demonstrated a slightly higher incidence (49.8%) compared to palatally impacted canines (43.9%).

Ectopic eruption of a tooth within the dentate region of the jaws is often noticed in clinical practice and is well documented in the literature. But the ectopic eruption into the non dentate region is rare and scantly documented. The maxillary sinus is one such a non dentate region, apart from nasal septum, mandibular condyle, coronoid process and the palate, to accommodate such ectopic eruptions of teeth. Due to its rarity and lack of consensus over its management, the incidence deserves to be added to the literature and discussed. Early surgical intervention for removal of ectopic tooth along with enucleation of the associated cyst, if any, is the treatment of choice.

Dentigerous cysts are commonest type of developmental, epithelial-lined, odontogenic cysts arising in the jaw from the crowns of impacted, unerupted or embedded tooth, most often third molar. But dentigerous cysts arising from ectopic tooth in maxillary sinus is quite rare. Ameloblastoma changes in the dentigerous cysts are rare and to the best of our knowledge have not been reported to be arising from ectopic tooth in maxillary antrum. In this article, we present the radiological diagnosis, clinical features and management of this rare case of ameloblastic transformation in dentigerous cyst arising from ectopic tooth in maxillary antrum.

Dentigerous cysts are the most common type of developmental odontogenic cysts arising from the crowns of impacted, embedded, or unerupted teeth. They constitute about 20% of all epithelium-lined cysts of the jaws. The teeth involved most often are mandibular third molar and maxillary canines. About 70% of dentigerous cysts occur in the mandible and 30% in the maxilla. Dentigerous cysts associated with ectopic teeth within the maxillary sinus are fairly rare, and only 20 cases had been reported in Medline since 1980. In the present paper, we report an additional case of dentigerous cysts associated with ectopic third molar in the right maxillary sinus. Also, pathogenesis of ectopic tooth, role of advanced imaging, differential diagnosis, and management are discussed.

An intranasal tooth (INT) is an ectopic tooth erupting into the nasal cavity. It is a rare clinical entity. Ectopic and supernumerary teeth may be present in many regions of maxillofacial skeleton. Ectopic teeth may be supernumerary, deciduous or permanent. The clinical manifestations of intranasal tooth are quite variable and they may cause a variety of symptoms and complications. Their clinical and radiographic presentations are classical, posing little challenge to the diagnostician. The identification of such teeth can be important since they have potential to cause considerable morbidity. Here, we describe a case of intranasal tooth along with possible etiopathogenesis, clinical and radiographic features, differential diagnosis, potential complications and treatment modalities.

Dentigerous cyst is known to be caused by the accumulation of fluid between the epithelium and the crown of an unerupted tooth. Its size increases by the expansion of the follicle, and it is attached to the neck of the tooth. These cysts are often associated with impacted third molars and maxillary canines and rarely with supernumerary teeth. In the present paper, we report a case of a dentigerous cyst associated with an impacted ectopic supernumerary tooth. This cyst was missed initially due to a failed root canal treatment associated with the nonvital maxillary central incisor. This case of a cystic lesion can create a dilemma between radicular and dentigerous cyst. The pathogenesis of the ectopic tooth, differential diagnosis, and management are also discussed.

A 30-year-old female patient reported to the dental clinics with a complaint of missing teeth. On clinical evaluation maxillary left pre-molars and mandibular left second molar were absent, the patient was free from any gross pathology and a set of radiographs was advised for analysis of periodontal health and treatment planning. Radiographs revealed the presence of an impacted 3rd molar tooth in the left coronoid process [Table/Fig-1], though clinically no signs or symptoms were observed. Since the location of tooth was abnormal the case was diagnosed as “ectopic 3rd tooth in coronoid process”. [Table/Fig-1]: Orthopantomogram showing ectopic 3rd molar in left coronoid process As the literature suggests such asymptomatic patients can be kept under regular follow-up without any surgical intervention till there is any associated pathology or discomfort. The patient was motivated for placement of implants in edentulous areas and was informed regarding the presence of the ectopic tooth. All the possible complications which could arise in relation to the ectopic tooth were explained to the patient. Further, the patient was advised to have a regular follow-up and visit the dental clinics in case even slight discomfort arose in the concerned region. Occurrence of impacted 3rd molar tooth is not uncommon but an impacted 3rd molar tooth in an abnormal location (ectopic tooth) is not encountered very frequently [1]. As per the reviews very few cases of ectopic 3rd molar tooth have been reported in English literature [1,2]. Hence, it becomes difficult to comment about the epidemiology of these ectopic teeth. The aetiology of this phenomenon also remains obscure, though many theories have been put forth to explain this exceptional event [2]. This paper presents a case of an ectopic tooth in coronoid process. Only 6 cases of this condition have been reported till date, thus the current case is another milestone of this rare occurrence [1]. A tooth may be impacted, by soft tissue alone or it might be a bony impaction, but the location of the tooth is close to its physiologic position [3]. When such impacted teeth have dislocated to distant regions such as condylar process, mandibular ramus, maxillary sinus, nasal cavity etc these are referred to as ectopic teeth [1,2]. Keros and Susic referred to this condition as “Heterotopic position of tooth” in his report [4]. Occurrence of ectopic tooth as such is an uncommon phenomenon and ectopic tooth in coronoid process is even rarer [1], the latter scenario was observed in the current case. It is not always possible to determine the exact cause of an ectopic tooth. Various authors have suggested different possible aetiologies which may be either pathologic such as cysts, developmental like an abnormal eruptive pattern or tooth germ development in abnormal location, or sometimes traumatic or iatrogenic in nature [1,2]. In the present case the causative factor appears to be developmental aberration since there was no associated pathology or any history of trauma or surgical interventions in relation to the jaws. Due to the sporadic nature it is not appropriate to definitively comment about the gender predilection, site, clinical signs and symptoms, etc of ectopic 3rd molars. Most of the reported cases in literature are in women and located in mandibular subcondylar or condylar region [1]. In present case too patient was a female but the tooth was located in an atypical position i.e. the coronoid process [Table/Fig-1]. The clinical symptoms may be in the form of pain and swelling, trismus or sometimes fever with acute inflammation and draining sinus [2]. In the case under discussion the patient was asymptomatic and it was an incidental finding. Asymptomatic cases are generally kept under regular follow-up with radiographic evaluation, as was done in the current case. Ectopic tooth associated with cysts are generally surgically treated conservatively until the cyst is very small. In latter case patient is kept under regular follow-up with radiographic evaluation as is done in asymptomatic cases. Intraoral approach is preferred if possible to avoid scarring of facial skin [5]. Based on various reported cases and reviews of ectopic tooth it can be said that coronoid process is not a common location for occurrence of this phenomenon. Further, it is a must that asymptomatic cases are kept under regular follow-up to monitor the development of any new symptoms or pathology or observe any increase or decrease in the associated pathology.

Volume 3 | Issue 4 Supernumerary Ectopic Tooth in Nasal Cavity A Case Report Ahmed Z*1 and Zubair S2 1Professor of ENT, Shalamar Medical & Dental College, Lahore, Pakistan 2House Officer, CMH-Medical & Dental College Lahore, Pakistan *Corresponding author: Ahmed Z, Professor of ENT, Shalamar Medical & Dental College, Lahore, Pakistan, Tel: +92-3344551285, E-mail: zubmedke@hotmail.com Case Report Open Access

Dentigerous cysts associated with an ectopic third molar in the subcondylar area are fairly rare, and information is limited about its causes and characteristics. This article reports a case of dentigerous cysts associated with an ectopic third molar in the subcondylar and reviews the literature on the clinical signs and symptoms and different treatment methods of this condition. We report a case dentigerous cyst associated with an ectopic mandibular third molar in the subcondylar area. 14 cases of dentigerous cysts associated with an ectopic third molar in the subcondylar area reported in the English-language literature over the past 30 years, identified from Medline databases are also reviewed. We found a mean age at diagnosis of 48.1 years and a higher prevalence in women. Facial pain and swelling on the preauricular region or ipsilateral side of the mandible were the most common symptoms. Among the 14 case reports identified, 7 were by an extraoral approach and 7 were by an intraoral approach. The most commonly used extra-oral approaches are retromandibular. The etiology of ectopic mandibular third molars has not yet been completely clarified. They must be removed if they cause symptoms or are associ­ated with cystic pathology. The treatment of third molars in the condylar region is divided into conservative and, in most cases, surgical removal by intra or extra-oral route. The surgical approach must be carefully planned according to the location and posi­tion of ectopic third molars. Key words: Dentigerous, subcondylar, ectopic tooth.

Ektopik dişler diş ve ağız harici lokalizasyonlarda nadiren tarif edilmişlerdir. Maksiller sinüs içinde ektopik diş çıkması, asemptomatik olması nedeniyle sıklıkla rutin radyolojik ve klinik değerlendirme sırasında tesadüfen karşılaşılır. Eğer maksiller sinüs içinde ektopik diş çıkması semptomatik oluşursa; pürülan rinore, yüz ağrısı, başağrısı, şişme, epistaksis ve epifora gibi bulgular görülebilir. Çoğunlukla Caldwell-Luc prosedürü ile tedavi edilir. Bu çalışmada, sağ maksiler sinüste ektopik maksiller üçüncü molar diş olgusu sunuldu, Ectopic teeth have been rarely described in non-dental and non-oral localizations. Ectopic tooth eruption in maxillary sinus usually runs across incidentally during routine radiological or clinical evaluation because it is generally asymptomatic. If it occurs symptomaticaly; the findings like purulent rhinorrhoea, facial pain, headache, swelling, epistaxis and epiphora can be seen. It is often treated via Caldwell-Luc procedure. In this study, a case of ectopic maxillary third molar tooth on right maxillary sinus is presented.

This article describes the case of a 41-year-old woman who presented with the complaint of crepitation sound and mild pain in the left temporomandibular joint area. Panoramic radiographs taken to rule out degenerative or arthritic changes in the joints demonstrated a radiopaque mass within the left condyle. Cone beam computed tomography scans revealed an ectopic tooth located centrally within the left condyle. Thus, while considered rare, the mandibular condyle can be a possible location of an ectopic tooth.

Location of ectopic tooth in a nondentate area like the maxillary antrum is rare. A 17-year-old boy, with one year history of recurrent right facial swelling and radiographic finding of a maxillary third molar tooth located at the posterior wall of the maxillary antrum, is presented. Under endotracheal intubation, the tooth was extracted through a Caldwell-Luc antrostomy approach and patient had an uneventful recovery and has been symptom free for eight months. Ectopic tooth in the maxillary antrum is rare and is commonest with maxillary third molar. It may be symptomless but is more commonly associated with inflammatory symptoms. The treatment of choice is surgical excision which is mostly carried out with Caldwell-Luc approach, even though endoscopic approach is being reported.

A 23 year-old-woman was referred to point out for pain on the left side of her face and mucopurulent rhinorrhoea lasting for 07 months with long history of recurrent sinusitis. Antibiotics and pain-killers were prescribed to him in the first time. On examination of the oral cavity, all the permanent teeth were present. At nasal endoscopic examination we found a mucopus trickling from the left middle meatus.clinical diagnosis is for sinusitis of dental origin, fungal sinusitis or chronic rhinosinusitis Coronal computed tomography (CT) of the paranasal sinuses revealed the presence of a supernumerary molar tooth (Arrow) within left maxillary sinus floor (A). The tooth was extracted by traditional approach (Caldwell-Luc procedure) from the maxillary sinus under general anesthesia (B, C, D), and the patient has been asymptomatic for more than 02 years. The presence of ectopic or supernumerary tooth in the maxillary sinus is most often asymptomatic but on rare occasions can be a cause of recurrent sinusitis. The supernumerary ectopic tooth is a very rare condition, usually it's localized on the maxillary sinus, and other sites were described like nasal cavity or chin. Coronal computed tomography is sufficient to determine extract localization. The extraction can be made by conventional approach or by transnasal endoscopic approach with less morbidity.

Unerupted molars are generally found at or close to their usual site of eruption, but occasionally these teeth are encountered in more distant locations. Tooth dislocation may occur as a result of migration or may be induced by pathology. The etiology and mechanism of intraosseous tooth migration is not fully understood, but it is an uncommon natural event that primarily affects unerupted mandibular second premolars, canines, and lateral incisors. Occurrences of migrated canines, second premolars, and lateral incisors appearing generally near their original eruption location are frequently described in the literature. A few distal molar displacement cases are reported and, in rare cases ectopic molars are located in the condyle or subcondylar regions, but they are usually inverted third molars associated with lesions or tumors that are the reason for tooth dislocation. The majority of these reports relate to third molars in the subcondylar area, while rare findings reveal a tooth located in the condyle. Apparently, a second molar intraosseous migration reaching the condyle, unrelated to any kind of lesion, has not been reported in literature. This case has particularly interesting aspects besides being a rare ectopic tooth in mandibular condyle. Three panoramic radiographs taken over an 8-year period revealed tooth migration from the mandibular ramus to its final location in the condyle. Furthermore, this second molar appeared without any associated lesion that could explain such unusual movement.

This case report presents a 13-year-old girl who attended an orthodontic clinic for an ectopic UR5. After investigation, a diagnosis of an odontogenic myxoma was made and the tumour was excised. A panoramic radiograph taken almost two years earlier for another dental problem was found to show an ectopic UR5 associated with a subtle radiolucency. Odontogenic myxomas may be of higher frequency than once thought in the paediatric population and therefore should always be considered in the differential diagnosis of any intraosseous radiolucency. Any radiolucent area associated with an unerupted tooth should be investigated further or closely followed up. Clinical Relevance: The odontogenic myxoma is a rare but potentially serious benign tumour of the jaws.

Ectopic teeth erupted in the maxillary sinus are rarely reported. Although the causes of eruption of a tooth into the maxillary sinus are unclear, some clinical conditions are suspected to be responsible, such as developmental disturbances (cleft palate), displacement of teeth by trauma, interventions or cyst, infection, genetic factors, crowding, and dense bone. Most cases of ectopic teeth in the maxillary sinus are asymptomatic and are occasionally diagnosed thanks to routine radiographic investigations.The aim of this article is to present and discuss the surgical management of an ectopic third molar in the roof of the maxillary sinus.

The term odontogenic keratocyst was first used by Philipsen in the year 1956. The lesion was renamed by him as keratocystic odontogenic tumor (KCOT) and reclassified as odontogenic neoplasm in the World Health Organization's 2005 edition that occurs commonly in the jaws having a predilection for the angle and ascending ramus of mandible. In contrast, KCOTs arising in the maxillary premolar region are relatively rare. Here, we discuss a rare case of keratocystic odontogenic tumor occurring in the maxilla with an ectopic tooth position.

This report is of a patient with an inverted tooth penetrating the nasal cavity. The patient was a 7-year-old girl who presented with nasal obstruction and epistaxis. A tooth-like mass was found in the right nasal cavity and X-rays revealed an ectopic supernumerary tooth in the nasal cavity. After surgical removal of the tooth, the symptoms completely resolved. There have been 143 patients, involving 148 intranasal teeth, reported in the Japanese literature. In this report, these patients are reviewed clinically according to sex, age, tooth form, site of eruption, aetiology, symptoms, and treatment.

A 32-year old female visited our hospital complaining of anabnormal sensation in the anterior neck. Posterior rhinoscopy revealed a tooth-like mass in her epipharynx on the left side.A Davis mouth-opener was applied, and the mass was removed with an ecraseur under general anesthesia. The pathological diagnosis was ectopic tooth in the epipharynx.Including this case, 136 patients (143 teeth) with dental abnormalities have been reported in the Japanese literature. Most of these abnormalities were in the nasal cavity.The etiology in this case may have been movement of rudiment No. 8 with growth in the epipharynx.

Ectopic teeth erupt into regions other than the natural position or should be impacted in unusual location. Etiology of these teeth includes trauma, infection, and developmental diseases; however, in many cases, it is idiopathic. In addition, dentigerous cysts that are related with ectopic teeth may also affect adjacent anatomic regions. The occurrence of ophthalmic complications related with ectopic teeth is a rare situation. In this article, we aimed to present a patient who had a blurred vision thought that resulted from the dentigerous cyst associated with the ectopic third molar in the maxillary sinus roof.

A case of a large dentigerous cyst containing a canine tooth in the maxillary antrum is presented. This case is of interest due because of its extensiveness and thepresence of a canine tooth in the roof of the maxillary sinus. In addition, this caused aright-sided epiphora. Enucleation of the cyst containing the ectopic tooth was made.

Intranasal ectopic teeth are rare and ectopic eruption of teeth can occur in a variety of locations. Commonly seen in the palate and maxillary sinus, they have also been reported in the mandibular condyle, coronoid process, orbital and nasal cavities, and through the skin. With the advent of sinonasal endoscopy in the mid 1980s, and subsequent advances in surgical techniques, endoscopic management of intranasal lesions has become possible. In the current case study, we report a successful endoscopic removal of intranasal ectopic teeth located in the nasal cavity. The endoscopic surgical approach used in this case caused less morbidity than do the more common methods of removing an intranasal ectopic tooth.