Cubic splines were fitted to the maxillary dental arches of 27 children with permanent dentitions, all having Class I molar, cuspid, and buccal segment relationships. A set ofdata points was chosen to represent arch form, and of these points, five were used as knots of the spline. Error of the fit of the curve was evaluated through the analysis of normals to the curve computed from those points...

UNLABELLED Maxilla expansion is a procedure that aims at increasing the maxillary dental arch to correct occlusal disharmony. Largely used in children, its efficacy in adults, when craniofacial growth has attained bone maturity, is controversial. AIM The present study has the objective of evaluating cephalometric modifications resulting from maxilla expansion in adult patients, observing the ...

Amelogenesis imperfecta is an autosomal dominant disorder. It is a group of hereditary diseases showing abnormal enamel density and crown malformation. This clinical report describes the oral rehabilitation of a young adult diagnosed with a variant of hypoplastic amelogenesis imperfecta with multiple impacted teeth and skeletal class III malocclusion. The treatment procedures of teeth extractio...

DESCRIPTION A 20-year-old man with a previous gunshot to the left mandible presented with left facial swelling and trismus after being assaulted in the face with a closed fist. Mouth opening from maxillary to mandibular central incisors was limited to 3 cm. Dedicated maxillomandibular computed tomographic (CT) scan demonstrated an isolated left zygomatic arch fracture impinging the coronoid of ...

Traumatic injuries to primary teeth are very common. A properly designed fixed space maintainer not only preserves arch length but also reduces the psychological trauma, speech problems and prevents the development of tongue thrusting habits. As, it is difficult while operating in such young patient’s mouth, this article describes a simple technique to quickly fabricate a space maintainer for a...

AIM Retraction of maxillary canines after first premolar extractions is a very common orthodontic task in cases of crowding or for the correction of large overjet. Many studies have been done to increase the rate of retraction. The aim is to compare the rate of canine retraction into recent extraction site with and without circumferential supracrestal fiberotomy. MATERIALS AND METHODS The rat...

OBJECTIVE To evaluate the long-term changes in maxillary arch widths, overjet, and overbite in patients who were treated with rapid maxillary expansion (RME) followed by edgewise appliances. MATERIALS AND METHODS The material for the study consisted of study casts taken from 41 patients (19 males, 22 females) on four different occasions (before treatment, T1; after RME, T2; after treatment, T...

AIM The aim of this study was to evaluate the changes in the transverse dimension and the perimeter of the maxillary arch produced by low friction self-ligating brackets TIME 3 compared to the Invisalign technique. MATERIALS AND METHODS Both the self-ligating sample and the Invisalign group were composed of 20 subjects, evaluated at the beginning (T0) and at the completion of therapy (T1). Al...

OBJECTIVE To compare the vertical facial and dental arch dimensional changes occurring with extraction and nonextraction orthodontic treatments. STUDY DESIGN Cross-sectional comparative study. PLACE AND DURATION OF STUDY The Aga Khan University Hospital, Karachi during the period 2003 to 2005. METHODOLOGY Data were collected using records of patients who visited the study setting during t...