Proximal Stripping and the Apprehension to Implement it in Contemporary Orthodontics: A Review.

Interproximal reduction, referring to the reduction of tooth structure in the proximal surfaces of anteriors or posteriors as required by the clinical scenario, has most often intrigued the orthodontist and the general dentist in particular in implementing it in contemporary orthodontics on a regular basis. The reduction of tooth structure as likelihood for the development of dental caries proximally, when the patient is undergoing orthodontic therapy, can in itself be a subject of debate between the conservative general dentists and the orthodontist. With recent treatment options for minimal space requirements in aligning teeth and others such as clear aligner therapy which involve the use of proximal stripping, this review aims to present the current concepts in interproximal reduction and its questionable role as an etiological factor in the development of caries.

Considerations of orthodontic aspect in three lower incisor cases / 대한치과교정학회지

Orthodontists have experienced the treatment of cases with three lower incisors. Occasionally a lower incisor was either congenitally missing or so seriously damaged by injury or disease that its removal presented the best prospect for the patient. Sometimes the intentional extraction of a lower incisor is needed to produce enhanced functional and esthetic results with minimal orthodontic manipulation. Such cases have unfavorable anterior tooth size discrepancies and present difficulties in achieving good occlusal results. However such difficulties can be overcome by the sensible diagnosis and treatment plan. Three different cases are presented and the conclusions are listed. 1. It is important for orthodontist who tries to treat three lower incisor cases to measure and calculate accurately the degree of deviation of tooth size and morphology and the anterior tooth size ratio. 2. A diagnostic setup model should be made to determine whether the incisor extraction is appropriate and space closure is needed or not. It is the best way to be sure that the occlusal results, including overbite and overjet, will be acceptable and how far the degree of midline deviation is. It also shows the amount of interproximal reduction to achieve an acceptable occlusal result. 3. The class I relationship between the upper canine and the lower one must be obtained to establish the canine rise during eccentric movement by the concept of mutually protective occlusion. It also helps to maintain the stable occlusal result.