Congenitally missing teeth (CMT) are among one of the commonly known dental anomalies. The most frequently missing teeth in the permanent dentition, excluding the third molars, are mandibular second premolars and maxillary lateral incisors. Exclusive agenesis of both maxillary canines is an extremely rare occurrence and only a few cases have been reported. Previous studies showed that the preva...

There has always been concern in determining the relationship between orthodontic tooth movement and the consequent biological costs to the periodontium and tooth root. The possibility of evaluating the tooth and bone morphology by CBCT allows more accurate analysis of qualitative and quantitative aspects of these processes. This paper presents a case report of a 20-year-old male patient with C...

The dental and skeletal dimensions of individuals with Class I skeletal pattern in puberty were compared. Eighty patients with Class I malocclusion were selected, independent of the vertical relations (overbite) of the incisors. The sample was divided into 3 groups: normal, short and excessive lower anterior face height, based on facial proportions. The dental and skeletal measurements of the 3...

Aims and Objectives: This retrospective study was conducted to investigate the effect of treatment with a maxillary protraction appliance (MPA) on the development of craniofacial structures and the upper airway dimensions. Methods: Twenty patients (10 male and 10 female; mean age 10.3 +/1.12 years) with skeletal Class III malocclusion were included in this study and were evaluated by the use of...

Objective: The aim of this case report was to evaluate the results of deep overbite correction by the segmented arch technique. Methods: The first stage of the treatment was performed with this technique to intrude incisors and canines. A maxillary transpalatal bar and a mandibular lingual arch using 0.051-in archwire were employed associated to a facial bow, anchored primarily with occipital p...

background and aims. class iii malocclusions are considered as one of the most complex orthodontic problems to diagnose and treat. numerous studies have been conducted to determine the morphologic characteristics of craniofacial complex in patients with this malocclusion. the aim of this study was to determine the dentofacial characteristics of class iii malocclusion in mashhadian adults. mater...

The size of teeth is one of the crucial factors affecting occlusion formation. In the occurrence of the crowding of dental strings, the size of teeth has a significant role. The aim of the study was to determine the influence of the size of permanent frontal teeth (bicuspids) on the appearance of the crowding of the frontal segment of dental strings. The study included 140 subjects, aged 15-20 ...

The width of the attached gingiva of 54 children 12-14 years old was measured and compared with its width measured five years before. The width of the attached gingiva of 96 mandibular permanent central incisors at the second examination was grouped according to its width at the first examination. In addition, the width of the attached gingiva of 67 mandibular central incisors, at both examinat...

objectives: this study aimed to assess the radicular wall thickness in mandibular incisors with two canals and find the maximum and minimum thickness to prevent root canal treatment (rct) procedural errors. materials and methods: a total of 160 extracted mandibular incisors were selected and radiographed; out of which, 55 had two canals. three parallel transverse sections were made in each toot...