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The article investigates skeletodental changes in hyperdivergent Class II adolescents treated with modified C-palatal plates (MCPP) either early or late, comparing their efficacy and long-term retention outcomes. It analyzes the effects on mandibular plane angle, vertical control, and stability, highlighting that early MCPP treatment demonstrated superior vertical control but similar long-term stability compared to late treatment.

The article focuses on comparing posttreatment stability in skeletal Class III patients treated with total mandibular arch distalization (TMAD) using mini-implants versus mandibular setback surgery (MSS). Topics include significant dental changes after treatment such as distal movement of mandibular molars, contrasting with no dental changes in the MSS group, and the sagittal skeletal changes observed only in the MSS group, indicating a greater improvement in facial esthetics and occlusion.

Objective: This case report describes the interdisciplinary treatment of a 10-year-old girl with asymmetric Class III malocclusion, severe maxillary crowding, and bilaterally impacted maxillary canines. Clinical considerations: The clinical decision-making factors regarding treatment alternatives and the final treatment plan are discussed. A two-phase nonextraction therapy was implemented to relieve severe crowding, eliminate the maxillary canine impactions, and compensate for skeletal Class III malocclusion. The first treatment phase involved aligning the left canine through conventional orthodontic traction, while the more deeply horizontally impacted right canine was corrected through transalveolar transplantation. In the second phase, the Class III dental relationship was corrected through mandibular molar retraction. The effective use of various temporary skeletal anchorage devices such as modified c-palatal plates and mini-implants was illustrated. Conclusions: At the end of the treatment, esthetic dental alignment was achieved, along with improved facial balance. The transplanted maxillary right canine showed good health and a favorable long-term prognosis over six years after the procedure. [ABSTRACT FROM AUTHOR]

Introduction: The purpose of this study was to assess speech perturbation and adaptation for patients wearing modified C‐palatal plates (MCPPs) over time. Methods: The sample consisted of 40 patients, 20 wearing MCPPs as the experimental group (age: 20.7 ± 5.8 years) and 20 patients wearing a transpalatal arch (TPA) as the control group (age: 21.5 ± 6.4 years). The sounds /t/, /d/, /s/, /n/, /r/, /tʃ/. and /j/ were recorded for each patient at six time points: immediately before (T0) and after (T1) appliance placement; then 1, 2, 3 and 4 weeks after placement (T2–T5). Acoustic analysis of pitch and voice onset time (VOT) was performed by Praat software. Repeated measures analysis of variance (RM‐ANOVA) was used to assess changes in the pitch and VOT over time and the difference between the appliances. Results: With the MCPP appliance, /n/, /r/, /tʃ/ and /j/ decreased in VOT starting in the first week while /t/ and /s/ almost returned to pre‐treatment levels after 2 weeks. VOT for the /d/ sound did not change between T0 and T3, but it decreased after 3 weeks. There were no significant differences in pitch and VOT between the two groups at any time point. Conclusions: Wearing an MCPP device caused patients to initially distort the articulation of several sounds, but the distortion dissipated within 1 to 2 weeks. It is recommended that patients and/or their parents be advised during pre‐treatment counselling of the possibility of temporary speech changes with MCPP placement. [ABSTRACT FROM AUTHOR]

Introduction: The purpose of the present study was to use facial axis (FA) points to classify dental arch form generated from an analysis of 3-D virtual models of a sample of normal occlusions. A secondary aim was to introduce a new arch form template based on this classification for clinical application.

Many patients and guardians prefer not to have teeth extracted as part of orthodontic treatment. Modified C-Palatal Plates (MCPPs) have been developed as an effective oral appliance. The design and procedure for placing these appliances involve a sequence of steps and specialized instruments such as a miniscrew driver. By understanding the biomechanics associated with MCPP placement, molar positioning can be optimized with less distal tipping and greater distalization. In addition to recognizing the various advantages of MCPPs, the implications of MCPPs should be considered, including the following: how far back the molars need to be moved, the effects of second and third molars in adolescents, the effects in maxillary pneumatization cases, potential impact on the airway, long-term stability, and a comparison of MCPPs to headgear. The purpose of this report is to introduce MCPP as an oral appliance that uses both miniscrews and miniplates to efficiently distalize molars minimizing the need for extraction. [ABSTRACT FROM AUTHOR]

Objective: This study aimed to investigate the prevalence and extent of dental developmental complications in patients who have undergone pediatric hematopoietic stem cell transplantation (SCT) and identify the risk factors. Materials and methods: We retrospectively investigated the clinical data warehouse of the Catholic Medical Center information system for identifying patients who: 1) visited the Department of Pediatrics between 2009 and 2019, 2) underwent SCT under the age of 10, and 3) had panoramic radiographs. Thus 153 patients were included in this study. The prevalence and extent of tooth agenesis, microdontia, and root malformation were assessed using panoramic radiographs obtained after SCT, and the risk factors were analyzed using regression analysis. Results: All 153 patients had at least one dental anomaly. When grouped according to the age at initial chemotherapy (≤ 2.5; 2.6–5.0; 5.1–7.5; > 7.5 years), the prevalence of agenesis showed statistically significant differences among the different age groups (P < 0.001). The prevalence of agenesis was highest in the youngest age group. As the initial age at chemotherapy increased, the number of affected teeth per patient decreased for all three anomalies. The location of the affected tooth was also influenced by the age at initial chemotherapy. Regression analysis demonstrated that young age at initial chemotherapy was a risk-increasing factor for tooth agenesis and microdontia. Conclusions: The age at initial chemotherapy may be a critical factor in determining the type, extent, and location of dental complications after SCT. These results suggest that careful dental follow-up and timely treatment are recommended for pediatric patients undergoing SCT. [ABSTRACT FROM AUTHOR]

Introduction: This study aimed to evaluate the dentoskeletal and soft-tissue changes after molar distalization using modified C-palatal plates in patients with severe maxillomandibular arch length discrepancies.Methods: Twenty-four patients with Class I and II malocclusion (19.0 ± 7.3 years; 17 females and 8 males), who had severe maxillary crowding of >10 mm, and moderate mandibular crowding of >6 mm, underwent molar distalization using modified C-palatal plates and buccal miniscrews with approximately 300 g of force per side. Models were made, and cephalograms were taken before and after treatment. Cephalometric variables and arch dimensions were measured. Paired t test and Wilcoxon rank sum test were used for statistical analysis.Results: In the maxillary dentition, an average of 12.4 mm of crowding was resolved by molar distalization of 4.4 mm, interproximal stripping of 0.7 mm, and arch expansion. In the mandibular dentition, crowding of 6.7 mm was alleviated by molar distalization of 2.4 mm, an interproximal of 1.5 mm, and additional arch expansion. The incisor positions were maintained (SN-U1, 101.3°; IMPA, 88.8°), and soft-tissue profiles were improved (LL/E-line -1.1 mm; P < 0.001) after treatment.Conclusions: Maxillary and mandibular tooth-size arch length discrepancy of 12.4 mm and 6.7 mm, respectively, were resolved by molar distalization, interproximal reduction, and arch expansion, whereas incisor positions were maintained, and soft-tissue profiles were improved. This could be a viable treatment option in patients with moderate-to-severe crowding. [ABSTRACT FROM AUTHOR]

Introduction: Evaluate the treatment effects of maxillary protraction using palatal plates and compare them to those with conventional tooth-borne anchorage in growing patients with Class III malocclusion.Methods: Forty patients were divided into 2 groups according to the type of anchorage used: group 1 (n = 20; mean age, 10.5 ± 1.6 years; palatal plates) and group 2 (n = 20; mean age, 10.0 ± 1.2 years; tooth-borne appliances). Lateral cephalograms were taken before and after maxillary protraction. Skeletal, dental, and soft-tissue variables were measured. For statistical analysis, paired and independent t tests were performed.Results: Group 1 showed maxilla advancement by 2.3 ± 1.0 mm compared with group 2 by 0.9 ± 0.6 mm, and group 2 indicated clockwise rotation of the mandible, but there was no such clockwise rotation in group 1 (P <0.001). Group 1 had a less lingual inclination of the mandibular incisors than group 2 (IMPA, -1.0 ± 3.8° vs -3.8 ± 2.8°; P <0.05). There was no difference in soft-tissue changes between the 2 groups.Conclusions: A facemask with palatal plate induced maxillary advancement with less mandibular clockwise rotation and dental movement than conventional tooth-borne anchorage. This modality can be used efficiently for maxillary protraction in growing patients with Class III malocclusion. [ABSTRACT FROM AUTHOR]

Introduction: The purpose of this study was to evaluate the treatment effects after molar distalization using modified C-palatal plates in patients with Class II malocclusion with maxillary sinus pneumatization.Methods: This study consisted of 70 lateral cephalograms derived from cone-beam computerized tomography images of 35 patients with Class II malocclusion (mean age 22.3 ± 7.4 years) who had undergone bilateral total arch distalization of the maxillary dentition using modified C-palatal plates. The samples were divided into 2 groups according to sinus pneumatization; group 1 (n = 40), cephalograms with sinus pneumatization and group 2 (n = 30) cephalograms without sinus pneumatization. Paired t tests and independent-sample t tests were used to compare the changes in each group and between groups.Results: The distal movement of the maxillary first molars was 4.3 mm for group 1 and 3.5 mm for group 2, with the intrusion of 1.4 mm and 2.5 mm, respectively. There was no statistically significant difference between the 2 groups. Group 1 showed 3.5° of distal tipping of the maxillary second molars, which was significantly greater than the 0.2° in group 2 (P <0.05). The total treatment period, including distalization, was 2.2 years for group 1 and 1.9 years for group 2, but the difference was not significant.Conclusions: There was no significant difference in the amount of distal movement and intrusion of the maxillary first molars between groups 1 and 2. Therefore, these results suggest that regardless of sinus pneumatization, molar distalization using temporary skeletal anchorage devices in Class II patients can be performed as a nonextraction treatment. [ABSTRACT FROM AUTHOR]

Introduction: The purpose of this study was to evaluate the effects of a triangular‐shaped corticotomy on the protraction of second and third molars in patients with missing mandibular first molars. Subjects and Methods: The corticotomy and non‐corticotomy groups consisted of sixteen first molars in fifteen patients (28.6 ± 9.4 years) and nineteen first molars in fifteen patients (26.6 ± 8.4 years), respectively. A triangular‐shaped corticotomy was performed between the second premolar and molar. Temporary skeletal anchorage devices (TSADs) were placed between the first and second premolars in both groups. Mandibular dentition variables were measured on the pre and post‐treatment panoramic radiographs and lateral cephalograms. Analysis of covariance was performed. Results: The corticotomy group exhibited 2.8 mm more inter‐radicular correction between the second molar to second premolar roots (P <.001) and 1.6 mm more inter‐radicular distance correction between the third molar to second premolar roots compared to the non‐corticotomy group (P <.01). The corticotomy group required 5.5 months less treatment time for space closure (P <.05), but the total treatment time was the same for both groups. Conclusions: The inter‐radicular distance between the mandibular second premolar and molar and treatment times for space closure was significantly reduced in the corticotomy group. [ABSTRACT FROM AUTHOR]