Effect of Bionator and Farmand Appliance on the Treatment of Mandibular Deficiency in Prepubertal Stage.

Objective: The present study aimed to compare dentoskeletal changes in mandibular-deficient patients treated with Bionator and Farmand appliances.

Methods: This study included 54 subjects treated for class II division I malocclusion. All subjects fulfilled the following criteria: ANB>5°, SNB<77°, and overjet >5 mm.

Cleft sidedness and congenitally missing teeth in patients with cleft lip and palate patients.

Background: The aim of this study was to investigate the prevalence of cleft sidedness, and the number of congenitally missing teeth in regard to cleft type and gender.

Methods: The charts, models, radiographs, and intraoral photographs of 201 cleft patients including 131 males with the mean age of 12.3 ± 4 years and 70 females with the mean age of 12.

Release of metal ions from round and rectangular NiTi wires.

Background: The aim of this study was to evaluate the amount of nickel and titanium ions released from two wires with different shapes and a similar surface area.

Methods: Forty round nickel-titanium (NiTi) arch wires with the diameter of 0.020 in.

Photogrammetric analysis of facial profile in Persian adults.

When facial photographs are analyzed for the purpose of identifying esthetics norms, differences in dentofacial relationships among ethnic and racial groups must be taken into consideration. Therefore, it is necessary to establish standards for various populations. The purpose of this study was to establish norms of photogrammetric soft tissue profile analysis for Persian adults.

Prevalence of Orthodontic Treatment Need and Occlusal Traits in Schoolchildren.

Background. Widespread use of the IOTN along with detailed study of occlusal traits is suitable for planning community dental health resources. Objectives.

R-appliance: a different design in functional therapy in Class II Division I malocclusion.

Unlabelled: The aim of this study was to compare the effects of a differently designed functional appliance (R-appliance) with control group in Class II Division I (Cl II Div I) cases.

Methods: 18 girls treated with R-Appliance were selected as the experimental group. The control group consisted of 20 untreated girls.

The relation between pogonion advancement and posterior maxillary impaction.

Controversy exists about the relation between the amount of posterior maxillary impaction and pogonion (P) advancement. The aims of the current study were to (1) propose a formula to predict the amount of P advancement due to posterior maxillary impaction surgery, (2) predict the amount of posterior maxillary impaction by means of a formula to achieve the best facial harmony, and (3) identify the compatibility between proposed formulas and the actual resultant mandibular position after posterior maxillary impaction surgery. For obtaining the formulas, 2 cephalograms were taken from 1 patient in centric occlusion and rest position.

Late cardiotoxic effects of anthracycline chemotherapy in childhood malignancies.

Objective: To determine the frequency of changes in left ventricular function in patients, at least 5 years after completion of anthracycline-therapy for childhood malignancy.

Methods: Echocardiographic examination was performed on 58 patients (36 males and 22 females) with mean age of 17.5+/-4.

Relationship between obesity and periodontal status in a sample of young Iranian adults.

Aim: To examine the possible relationship between body weight and periodontal disease in a sample of the young Iranian population.

Design: An analytical (Case-Control) study.

Participants: Eighty individuals aged 18 to 34 years (40 normal and 40 overweight and obese subjects) were evaluated in this study.

Risk factors in congenital heart disease.

A case-control study was conducted to investigate the risk factors of congenital heart disease (CHD). The cases were 346 children with CHD who were admitted to a university hospital in Tehran from 1995 to 2000 and controls (n=346) were randomly selected from children without CHD who were admitted during the same period. The medical records of both cases and controls were reviewed.