PURPOSE The objective of this study was to assess gonial angle under the angle classification by comparing panoramic radiograph and lateral cephalometric radiograph. MATERIALS AND METHODS 49 patients (25 males, 24 females) with an age range of 12-29 years participated in the present study. Subjects were retrospectively selected among those categorised as skeletal and dental Class I, II, and I...

BACKGROUND The objective of this study was to select a model of cephalometric variables to predict future Class III growth patterns based on the results of early orthopedic treatment with a protraction facemask. MATERIAL Sixty-four patients with Class III malocclusion were treated with a protraction facemask. Cephalometric radiographs were taken before treatment and a minimum of 3 years after...

BACKGROUND The aims of this study are to evaluate the lip morphology and change of lip commissure after mandibular setback surgery (MSS) for class III patients and analyze association between the amount of mandibular setback and change of lip morphology. METHODS The samples consisted of 14 class III patients treated with MSS using bilateral sagittal split ramus osteotomy. Lateral cephalogram ...

Objective: To investigate the cranial base morphology in skeletal Class I, II, III patients and to find any correlation. Materials and methods: Pretreatment lateral cephalograms of 75 patients were taken, 25 patients each belonged to Class I, II and III skeletal malocclusion respectively, between age group of 14 and 25 years. Results: The significantly more acute angle N-S-Ar reflected increase...

This case illustrates orthopaedic treatment of a 12.1-year-old girl with class III malocclusion and maxillary deficiency. The patient was treated by a fixed tongue appliance in the upper jaw. First maxillary molars and premolars were banded and a hyrax was mounted on them in order to achieve lateral expansion. A fixed tongue appliance comprising of a few cribs was soldered to the anterior side ...

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下顎前突症は比較的多 くみ られ る不正咬合を主徴 とす る顎骨変形症の1つ で,そ の治療法 と して矯正的方法 と 口腔外科的方法,あ るいは両者を併用す る方法が ある。 外科的治療は,顔 貌 および咬合状態 の改善,下 顎全体 と しての機能回復な どを 目的 として行われ,そ の術式には 下顎枝両側を切断 し下顎骨体を後方へ移動 させ る方法, および両側下顎骨々体 の1部 を切除短縮す る方法 とに大 別される1)2).下顎枝切断術にはそ の切断部位に よって種 々の方法があ り,大 別す ると水平切断法3)4),斜 断法5)~8), 垂直切断法9),矢 状切断法10)~14),などが ある.水 平切断 法は古 くか ら行わ れて き た方法で,Kostecka3)が これ らを改良 し,Kostecka氏 法 として報告 してい る.そ の 後,わ が国では中村15)に...