Changes in the mandibular dental arch during the late mixed dentition stage: Experimental study.

Objective: To determine the dimensional changes in the mandibular arch of untreated subjects during the late mixed dentition stage.

Methods: The cross-sectional study was conducted over three years starting March 2013 at the College of Dentistry, King Saud University, Riyadh, Saudi Arabia, and comprised consecutive models taken annually of subjects seeking dental treatment. They were aged 9 years at baseline and dimensional changes were calculated at 9, 10 and 11 years of age.

Impact of routine open-mouth osseous temporomandibular joint tomography on diagnosis and therapeutic options.

Objectives: The aim of this study was to evaluate the impact of routine open mouth osseous temporomandibular joint (TMJ) tomography on diagnosis and treatment planning of TMJ conditions. Investigating the need for such images is important to justify the additional radiation exposure imparted by such procedures.

Study Design: The records of patients who underwent closed- and open-mouth osseous TMJ tomography (planar film tomography up to the beginning of 2006; cone beam computed tomography from 2006 onward) were reviewed.

Retention practices and factors affecting retainer choice among orthodontists in Saudi Arabia.

Objectives: To identify the retention protocols practiced by orthodontists in Saudi Arabia, and the factors affecting retainer choice. 

Methods: This cross-sectional study took place between February and March of 2015 at the College of Dentistry, University of Dammam, Dammam, Saudi Arabia. A previously tested electronic survey of 34 items was sent to all 1,200 orthodontic members of the Saudi Orthodontic Society.

Evaluation of the fit of preformed nickel titanium arch wires on normal occlusion dental arches.

Aim: To determine the fits of preformed nickel titanium (NiTi) archwires on dental arches with normal occlusion.

Methods: Forty sets of upper and lower plaster models were obtained from men and women with Class I occlusions. Preformed 0.

Live demonstration versus procedural video: a comparison of two methods for teaching an orthodontic laboratory procedure.

Background: To measure the effectiveness of procedural video compared to live demonstration in transferring skills for fabricating orthodontic Adam's Clasp.

Materials And Methods: Forty-nine fourth-year undergraduate male dental students were randomly assigned to two groups. The students in group A (n = 26) attended a live demonstration performed by one faculty, while students in group B (n = 23) watched a procedural video.

Characteristics of Down syndrome subjects in a Saudi sample.

Objective: To compare the cephalometric characteristics of Down syndrome (DS) subjects with those of normal subjects.

Materials And Methods: Cephalometric radiographs of 60 Saudi DS subjects and 60 controls with specific inclusion criteria were used. Descriptive statistics were used to describe the quantitative and categorical variables, and the Student's t-test for two independent samples was used to compare the mean values of quantitative variables.

Cephalometric craniofacial features in Saudi parents and their offspring.

Objective: To estimate the correlation and heritability values of craniofacial variables between parents and their offspring.

Materials And Methods: The sample comprised 24 Saudi families; each family consisted of father, mother, son, and daughter. Lateral cephalometric radiographs were taken for each family member.

Sella turcica morphology and dimensions in cleft subjects.

Objectives: Evaluate sella turcica morphology, calculate its size in cleft subjects, and compare it with noncleft subjects.

Materials: Lateral cephalometric radiographs of 95 cleft and 190 noncleft individuals. Radiographs were divided into two groups by age: 11 to 14 years of age, 15 years and above.

Mathematical analyses of dental arch curvature in normal occlusion.

Objective: To present a comprehensive mathematical analysis of dental arch curvature in subjects with normal occlusion.

Materials And Methods: The materials studied were 40 sets of upper and lower plaster dental casts of subjects presenting with normal occlusion. The sample was equally divided into casts from male and female subjects with an age range from 18 to 25 years.

The shape and size of the sella turcica in skeletal Class I, Class II, and Class III Saudi subjects.

The purpose of this study was to describe the shape and measure the size of the sella turcica in Saudi subjects with different skeletal types. Lateral cephalometric radiographs of 180 individuals (90 males and 90 females) with an age range of 11-26 years were taken and distributed according to skeletal classification; 60 Class I, 60 Class II, and 60 Class III. The sella turcica on each radiograph was analysed and measured to determine the shape of the sella, in addition to the linear dimensions of length, depth, and diameter.

The association between posture of the head and malocclusion in Saudi subjects.

The purpose of the present study was to examine whether a relationship exists between posture of the head and neck, and the presence of certain malocclusal problems. Dental models, in addition to lateral cephalometric radiographs, taken in the "natural head position" of 180 male and female subjects were obtained. The postural angles between the head and the cervical column, termed craniovertical, craniocervical, cervicohorizontal, and cervical curvature, were measured.

Growth status of Saudi patients with cleft lip and palate.

Objective: The purpose of this study was to determine if the type of cleft had any influence on the growth achievement of the affected patients.

Methods: The height, weight and head circumference of 63 cleft patients attending the Orthodontic clinic at the College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia between the year 2000-2001, were compared with each other according to the type of cleft present. In addition, a comparison was made between the height and weight of cleft subjects with that of the normal population.