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Ectopic mandibular third molar is an uncommon condition, and the information regarding its causes and characteristics are not completely clarified. This article aims to report three extremely rare cases of asymptomatic ectopic mandibular third molars in the ramus of the mandible which were found accidentally during regular dental treatment. The treatment for asymptomatic impacted ectopic mandibular third molars without any pathologic related condition should be in a conservative manner without surgical intervention, but radiographic annual follow-up is indicated with monitoring for the development of any pathology. [ABSTRACT FROM AUTHOR]

Highlights • Ectopic teeth are commonly seen in palate. • The pathogenesis of ectopic teeth eruption is not fully recognized. • In children, intranasal ectopic teeth occur more frequent in patients with cleft lip and alveolus. • Most cases of the ectopic tooth are asymptomatic and identified incidentally. • The management of the ectopic teeth is tooth extraction. Abstract Introduction Intranasal teeth are a rare form of ectopic teeth. Their clinical manifestation are truly variable. In children, intranasal teeth are typically associated with cleft lip and alveolus. Presentation of case Here, we report a case of 11 years –old girl presented with right nasal obstruction and occasional headache without any obvious etiology. 0Computed tomography of the paranasal sinuses (coronal and axial view) revealed displaced right upper maxillary tooth with the crown oriented inferiorly and medially toward and within the lower right anterior nasal cavity. She underwent surgery by anterior rhinoscopy and endoscopic guidance. The patient's symptoms were resolved completely post-operatively and remained symptom-free for 18 months postoperatively. Discussion Ectopic intranasal tooth is a rare phenomenon, with a male predominance and around half of all patients are diagnosed before adulthood. Ectopic intranasal tooth arising from inferior turbinate is very rare. No clear etiological factor has been suggested in most of the reported cases. Idiopathic etiology has been described as an etiologic factor for ectopic teeth. The treatment of intranasal teeth is early surgical extraction to alleviate the symptoms and prevent the possible morbidities. Conclusion Intranasal teeth are a rare form of ectopic teeth encountered to otolaryngology clinic and may cause a variety of symptoms and complications. CT is very useful; it confirms the diagnosis and facilitates surgical planning. Early diagnosis and treatment are very important to avoid their possible complications. [ABSTRACT FROM AUTHOR]

Ectopic occurrence of mandibular third molar is a rare incidence. Usually found along with a cystic lesion or diagnosed incidentally during routine check-up. Owing to the rarity, only few cases were reported in the literature. The common site is the mandibular condyle followed by sigmoid notch, and often found in females. The frequent symptoms are obscure facial pain, trismus or the symptoms of the associated pathology like dentigerous cyst. The etiopathogenesis is uncertain and optimal management is still unclear. The symptomatic tooth should be removed either intraorally or extraorally. Here we report a case of ectopic mandibular third molar in ramus region surgically removed intra orally by high lingual split access osteotomy. [ABSTRACT FROM AUTHOR]

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Summary: Rhinolith describes the pathology which is formed by means of deposition of salts on an organic or inorganic nidus in the nose. A nidus may be endogenous or exogenous. A rinolith may develop on an endogenous nidus such as dried blood clots, desquamated epithelium, dried purulent material, bone fragments and rarely ectopic tooth. A 23-year-old male patient presented to our clinic with one-sided nasal obstruction, nasal discharge and deformity of nose. Anterior rhinoscopy, nasal endoscopy and computed tomography (CT) scan revealed a rinolith in the right nasal cavity. In this case, preoperative CT scan and postoperative histological examination revealed that the nidus of the rhinolith was an intranasal ectopic tooth. We herein discuss ectopic tooth as a rare cause of rhinolithiasis. [Copyright &y& Elsevier]

The subjects in the study were children who were X-rayed because of increased risk for resorption following ectopically erupting maxillary canines. One hundred and seven children 9 to 15 years of age with 156 maxillary canines that were erupting ectopically and 58 normally were investigated by computed tomography (CT) to describe the features of the dental follicles of the erupting maxillary canines. Contiguous, transverse CT scans were exposed through the maxilla in the canine region and the width and shape of the dental follicles were registered scan by scan throughout the extension of the follicle. The width and the shape of the dental follicle of the erupting maxillary canine varied greatly. The range of the maximum width, measured from the crown to the periphery of the follicle, was 0.5-7.0 mm, with a mean of 2.9 mm and a 95% confidence interval of 2.7-3.2 mm for the entire sample. No relationship was found between the width or shape of the follicles and sex, age, stage of eruption, inclination of the canine, or width of the dental arch. However, the location of the maxillary canine vis-à-vis the adjacent incisor was significantly associated with the width of the follicle, which indicated that local anatomic conditions might influence the width and shape of the follicle. The dental follicles of the ectopically erupting canines were, on average, wider than those of the normally erupting canines. The 95% confidence interval for the normally erupting canines was 2.3-2.7 mm; for the buccally erupting canines 2.4-4.1 mm; for the lingually erupting canines 2.6-3.0 mm; and for the apically erupting canines in relation to the lateral incisors 2.9-4.1 mm. Canine follicles that were wide but within normal limits did not cause deviations in adjacent teeth. Cystically degenerated dental follicles were found but were indistinguishable on the CT scans from those that had been widened physiologically. The contributions of the studied variables to the variation in the width of the dental follicle of the maxillary canine were analyzed with regression models. [ABSTRACT FROM AUTHOR]

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. [ABSTRACT FROM AUTHOR]

Abstract: Intranasal ectopic tooth is a rare nidus for a rhinolith where local infection may be concomitant. No description of the triple association ‘actinomycotic rhinolithiasis ectopic tooth’ could be found in the medical literature. Classically, the Actinomyces species are sensitive to regimens of penicillin from 6 to 12months or longer. Immunocompetent patients can benefit from shorter courses of antibiotic therapy, such as ciprofloxacin, with a favourable outcome. The authors describe the case of a 25-year-old man who presented with an actinomycosis chronic discharge revealing actinomycosis associated with rhinolithiasis and ectopic tooth. They attempt to explain the likely mechanism of occurrence of this triple association. [Copyright &y& Elsevier]

Abstract: Ectopic tooth are rarely found in the maxillary sinus. In rare cases, occlusion of the sinus ostia may predispose a patient to develop a maxillary sinus mucocele. Extraction of the tooth with excision of mucocele resulted in relieving of the symptoms. Here, we present a case of mucocele with an ectopic maxillary tooth located in medial antral wall, over the ostium area in a nine-year-old girl. We evaluated the clinical features, etiologic factors, challenging properties, signs and symptoms of the ectopic tooth in the maxillary sinus. [Copyright &y& Elsevier]