Background: Arch dimensions are very important to clinicians in orthodontics, pedodontics, prosthodontics, as well as to anthropologist. The dimensions include arch widths, arch length, and intra-alveolar width which assist in establishing proper diagnosis and treatment planning. Aims: This study aims to determine the arch dimensions in Qatari sample with different malocclusions, compare the results obtained with other previous studies and also compare the result between the different Angle's malocclusions classes. Materials and Methods: The sample consisted of 90 pairs of pretreatment orthodontic study casts selected from patients attending the orthodontic clinic. The sample was classified into three groups according to Angle's Classification as follows: Class I, Class, II, and Class III malocclusion and each group consisted of 30 pairs. The age range was between 13 and 20 years old. The intercanine width, inter-premolar width, intermolar width, and intra-alveolar width measurements were made in each dental cast using an electronic digital caliper. Independent t-test was performed for comparative analysis. Results: Descriptive statistics were presented for the three Angle's classifications. No significant difference was noted between the maxillary variables in Class I and Class III. Statistically significant difference was noticed in maxillary variables in Class II (intermolar II and inter-premolar I and II). Furthermore, significant differences were revealed in mandibular intermolar I and II, inter-premolar II, and inter-alveolar between Class III and Class I and also between Class III and Class II malocclusions. Class III malocclusion showed wider arch dimensions than that in Class I and Class II. Conclusions: The result of the present study is important to the orthodontist, pedodontist, and also to the prosthodontist and anthropologist.

Background: The function of many orthodontic indices is to assess occlusion in patients born with a cleft. The aim of this study was to assess the intra- and interexaminer reliability for the 5-year-olds' (5YO) index, the GOSLON Yardstick index, and the modified Huddart/Bodenham (MHB) index in dental casts of children with complete unilateral cleft lip and palate (UCLP); a further aim is to compare the indices to each other. Methods: Forty dental casts from 5-year-old nonsyndromic patients with complete UCLP who had undergone primary surgery at Skåne University Hospital in Malmö, Sweden, were examined by two examiners: one orthodontic specialist and one general dentist. Results: Intraexaminer reliability for 5YO and MHB had a substantial (κ: 0.61–0.80) to almost perfect agreement ( κ: 0.81–1.00) and GOSLON Yardstick moderate (κ: 0.41–0.60) to almost perfect agreement. Grouped teeth or single-tooth MHB had an almost perfect agreement for both examiners. Interexaminer reliability for 5YO had a moderate agreement, whereas GOSLON Yardstick and MHB had a fair agreement (κ: 0.21–0.40). Grouped teeth or single-tooth MHB had an almost perfect agreement. Conclusions: The 5YO index illustrates the occlusion and has a high degree of reliability for an experienced orthodontist. The GOSLON Yardstick also illustrates the occlusion, but reliability between assessments is lower. MHB index can be used with a high degree of reliability when categorized as grouped or single tooth, but the judgment of total occlusion is more uncertain.

Transverse maxillomandibular discrepancies are a major component of several malocclusions. Transverse maxillary discrepancies are routinely corrected in growing patients with appliances that separate the median palatal and associated maxillary sutures. This type of rapid palatal expansion (RPE) is not feasible in adults, however, because of the increasing resistance of the sutures. Surgically assisted RPE is an alternative method that reduces the resistance of the closed midpalatal suture to correct maxillary constriction in an adult. It allows clinicians to achieve effective maxillary expansion in a skeletally mature patient.

Clinicians often encounter infrabony osseous defects that are usually best treated by periodontal surgical techniques, including bone grafting and guided tissue regeneration, with a goal of establishing a new connective tissue attachment. On occasion, infrabony osseous defect proximal to a central incisor with extrusion and large midline diastema may present an opportunity to consider a resolution by orthodontic–periodontic interdisciplinary approach. Orthodontics has been used as an adjunct to periodontics to increase connective tissue support and alveolar bone height. In modern clinical practice, the orthodontic–periodontic interdisciplinary approach is essential for optimized treatment outcomes. The purpose of this case report is to highlight the importance of orthodontic–periodontic interdisciplinary approach in clinical practice and to improve the level of cooperation between dental practitioners. The authors decided to treat an advanced case of periodontitis, with extrusion and pathological migration of a maxillary central incisor, using orthodontic–periodontic interdisciplinary approach. After the nonsurgical conventional periodontal therapy, the orthodontic movement was started, and the incisor was repositioned using an intrusive mechanism. There was a significant clinical decrease in the probing depth values, and radiographs showed a remarkable reduction of the infrabony osseous defect.

The objective of this case report is to demonstrate the role of orthodontics in rehabilitation of alveolar bone defects. A 9-year-old female patient presented with an unerupted maxillary left central and lateral incisors. The central incisor was severely dilacerated with a 1.5 cm x 2.0 cm cystic lesion causing displacement and failure of eruption of the adjacent lateral incisor. Surgical enucleation of the central incisor and the cystic lesion was done, and the bone defect was filled with synthetic bone paste and was covered with a resorbable membrane. Orthodontic closed reduction of the displaced lateral incisor was attempted. The involved lateral incisor actively erupted at the site of the missing central incisor by orthodontic traction, and de novo bone formation was noticed radiographically in the bone defect. Clinically, bucco-palatal alveolar bone thickness was maintained sufficiently. Alveolar bone defects can be adequately restored with new bone formation by means of active orthodontic tooth movement through a bone defect filled with synthetic bone.

An impacted incisor with dilaceration poses a clinical dilemma because of its difficult position. This case report describes the orthodontic management of impacted dilacerated maxillary left central incisor. Based on esthetic demand and patient compliance, orthodontic traction involving closed eruption technique was performed to achieve alignment of central incisor in the arch. Prudent application of biomechanics and radiographic evaluation at regular interval assisted in achieving good esthetic and patient satisfaction.

The rise of the soft tissue paradigm has led to the rise of nonextraction therapy in orthodontics. Molar distalization is a key aspect in nonextraction therapy as well as Class II correction in certain cases. This article deals with the fabrication of a modified molar distalization jig. The salient features of this jig are that it is easy to fabricate with materials routinely available in an orthodontic office as well as very economical.

Retention is necessary in maximum number of orthodontic cases. Various retainers such as Hawley's retainer, Essix retainer, and bonded lingual retainers are fabricated for this purpose. However, fixed lingual retainers are the appliance of choice in cases needing permanent retention. Various techniques have been used for holding the fixed retainer in place before bonding. These techniques had a disadvantage of needing assistance for the purpose of holding the retainer in place. In some techniques, the ligature wire used to hold the retainer could cause trauma to the soft tissue if not taken due care. In this article, we are describing a new simple technique for holding the retainer. The “V” retainer clips described are easy to fabricate and place, use natural interdental space for its retention, needing less chairside time, and eliminate the need of the assistance.