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이승미,김미애,박관수,박형수,임한호,윤영주,김광원,유필식,김동훈,김중한 朝鮮大學校 口腔生物學硏究所 2001 口腔生物學硏究 Vol.25 No.2
The most common Class Ⅱ malocclusion is one that is caused by an underlying Class Ⅱskeletal discrepancy. The Class Ⅱ malocclusion that is present in an individual with a normal skeletal jaw relationship is less frequent and caused by forward movement during dental development of the maxillary molars relative to the mandibular molars. This less common condition may be unilateral or bilateral in presentation. There are two alternatives for treatment of the dental Class Ⅱ malocclusion : a nonextraction approach involving distal movement of the maxillary teeth and the extraction approach involving unilateral or bilateral extractions. This study describes the diagnosis and treatment of Class Ⅱ malocclusion with the illustrations of clinical cases.
하악 제 2 대구치 발거를 통한 III급 부정교합 환자의 교정치험례
김경님,이승미,김미애,박관수,박형수,임한호,윤영주,김광원 朝鮮大學校 口腔生物學硏究所 2001 Oral Biology Research (Oral Biol Res) Vol.25 No.2
Orthodontic treatment in conjunction with second-molar extractions has a controversial issue among orthodontics for many years. Although the results of several quantitative studies have been published, most articles pertaining to second molar extraction reflect the author's opinions and clinical experience, not scientific fact. Indications for second molar extractions and timing of the extractions very from on orthodontist to another. As the orthodontists decide this problem, they should consider facial exthetics, amounts and site of the corwding, size and eruption path of third molar, and patients cooperation. Chief among the advantages that have been claimed for second molar extraction are the disimpaction of third molars and the prevention of late corwding of the lower arch. Second molar extraction can be a very useful approach to treatment in carefully selected cases, but it cannot be regarded as a substitute for premolar extraction in cases. This study focuses on lower second molar extraction in the treatment of C Ⅲ malocclusion.
장성호,김중한,이승미,김미애,박관수,박형수,임한호,윤영주,김광원 朝鮮大學校 口腔生物學硏究所 2000 口腔生物學硏究 Vol.24 No.2
Reference The incidence of cleft lip and palate is quite high, complete unilateral cleft lip and palate accounting for about 30% of these births. Perhaps because of this high incidence, the craniofacial impact of cleft lip and palate has been studied extensively. One of the clinical features of cleft lip and palate is residual alveolar defect. Bone grafting has become a common procedure in the treatment of cleft lip and palate patients. According to its time of occurrence, the bone graft may be considered as primary, secondary, or tertiary bone graft. Some authors state that primary bone graft during early childhood can cause impairment of maxillary growth. Because of its controversal and counter-productive aspects, secondary bone grafting for cleft palate patients atfer the secondary dentition has erupted is now a widely accepted procedure. In this study, we discuss the effect of timing on alveolar cleft bone grafts, sequencing of arch expansion, grafting materials, and report cases that included bone grafting before and after canine eruption.
유필식,김동훈,김중한,이승미,김미애,박관수,박형수,임한호,윤영주,김광원 朝鮮大學校 口腔生物學硏究所 2000 Oral Biology Research (Oral Biol Res) Vol.24 No.2
Class Ⅲ malocclusion occurs in the number of patients of Asians and is one of the most difficult types of malocclusion to treat Class Ⅲ malocclusion primarily results from maxillary skeletal retrusion and mandibular skeletal protrusion, and combination of both. Treatment of Class Ⅲ malocclusion usually includes growth modification (Fra¨nkel. Face mask, Chin cup etc.), comprehensive orthodontic therapy, either combined with extraction and/or orthognathic surgery. This study describes the diagnosis and treatment methods of Class Ⅲ malocclusion with the illustrations of clinical cases.
김경님,지국섭,김중한,이승미,김미애,박형수,임한호,윤영주,김광원,박관수 朝鮮大學校 口腔生物學硏究所 2000 口腔生物學硏究 Vol.24 No.2
Even though congential missing of mandibular incisors is lower incidence than that of maxillary lateral incisors of premolars, it makes orthodontic treatment complicated, and then clinical orthodontists should be familiar with treatment alternatives. The treatment techniques used in resolving that cases depend on a myriad of diagnostic criteria such as dental, skeletal and aesthetic considerations. Be based on this consideration, the orthodontists must decide whether to retain or open space for prosthodontic treatment or to closure space with potential excessive overbite of the anterior teeth or to extract maxillary teeth for tooth material balance. The following case reports document three patients with one or two congenitally missing mandibular teeth who were treated by opportunely selected treatment modality.