a 7.5 year-old girl was seeking orthodontic treatment because of severe ectopic eruption of maxillary first permanent molars. it was a rare case that represented approximately horizontal view in panoramic radiograph. the severity of problem was high, but since the patient had maxillary deficiency, it was important to perform the treatment without extraction. treatment began with extraction of u...

A group of 25 untreated subjects with Class II malocclusion in the deciduous dentition (featuring the concomitant presence of distal step, Class II deciduous canine relationship, and excessive overjet) was compared with a control group of 22 untreated subjects with ideal occlusion (flush terminal plane, Class I deciduous canine relationship, minimal overbite, and overjet) at the same dentitiona...

dental anomalies are rare findings that may affect development of occlusion and early intervention may be required. here, a case of multiple anomalies in primary and perma nent dentitions is reported. the patient referred to the dental center with the chief complaint of multiple tooth decay. in the oral examination, the rare case of triplica tion between the right geminated man-dibular a and ri...

JCO/JANUARY 2003 T treatment of skeletal Class III malocclusion, particularly in the late deciduous or early mixed dentition, is one of the most challenging problems confronting the orthodontist. These patients frequently exhibit anterior or posterior crossbites, in addition to some combination of maxillary skeletal retrusion and mandibular skeletal protrusion. Although good treatment results h...

Few U.S. adults today experience life without permanent anterior teeth and know little about how an incomplete anterior dentition affects adult well-being. Sudanese refugees, who had resettled in the U.S. and who had six mandibular anterior teeth ritually extracted during youth, provided an opportunity to examine the significance of the effect of this partial edentulism. The authors interviewed...

The prevalence of signs and symptoms related to TM (temporomandibular) disorders was examined in 40 children with primary dentition and in 40 children with mixed dentition. The purpose of this study was to evaluate the relationship between dentition and TM disorders in the examined population. Maximum mouth opening was also evaluated. Clinical examination was done by one investigator. A questio...

Cartilaginous fishes continuously replace their teeth throughout their life (polyphyodonty) and often show a sexually dimorphic dentition that was previously thought to be an invariant sex character. Radial vector analysis of tooth shape in the polyphyodontic stingray Dasyatis sabina across a consecutive 24 month period shows a stable molariform morphology for females but a periodic shift in ma...

The convergence of computer-aided technology and dental implant has shown that dynamic navigation can effectively improve the accuracy reliability clinical placement. To address this, a system for oral surgery based on Mixed Reality (MR) been developed. Using standard dentition experimental model, stability linear curved positioning tracking brackets was studied by constructing real-time monito...

Objectives In this study, a clinical decision support system was developed to help general practitioners assess the need for orthodontic treatment in patients with permanent dentition. Methods We chose a Bayesian network (BN) as the underlying model for assessing the need for orthodontic treatment. One thousand permanent dentition patient data sets chosen from a hospital record system were pr...