The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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Hard and soft tissue profile changes following anterior subapical osteotomy in bimaxillary dentoalveolar protrusion patients

양악성 치조 전돌 환자의 근첨하 분절 골절단술 후 경조직 및 연조직 측모 변화

  • Han, Un-Ae (Department of Maxillofacial Surgery, Graduate School of Clinical Dental Science, The Catholic University of Korea) ;
  • Kim, Jeong-Hwan (Chungdam Ivy Dental Clinic) ;
  • Yoon, Tae-Ho (Kwangnam Jeil Dental Clinic) ;
  • Park, Je-Uk (Department of Maxillofacial Surgery, Graduate School of Clinical Dental Science, The Catholic University of Korea) ;
  • Kook, Yoon-Ah (Department of Orthodontics, Graduate School of Clinical Dental Science, The Catholic University of Korea)
  • 한언애 (카톨릭대학교 임상치과학교실) ;
  • 김정환 (청담아이비 치과) ;
  • 윤태호 (강남제일병원 치과) ;
  • 박재억 (카톨릭대학교 의과대학 & 임상치과대학원 구강악악면외과학교실) ;
  • 국윤아 (카톨릭대학교 의과대학 & 임상치과대학원 교정학 교실)
  • Published : 2003.12.01
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Abstract

The purpose of this study is to evaluate hard and soft tissue changes following the subapical osteotomy in bimaxillary dentoalveolar protrusion patients requiring maximal retraction adult female patients was selected. Surgical procedures were performed by the same surgeon, anterior subapical osteotomy techniques were employed on the maxilla and cephalometric radiograms were traced and superimposed using the best-fit method and two reference The results were as follows 1. The bodily movement of the maxillary anterior segment was achieved in a posterior moved posteriorly with a slight correction of the lower incisors. 2. The horizontal soft tissue measurements changed significantly after treatment, but Nt and Sn vertical soft tissue measurements indicated that Ls moved inferiorly and Li superiorly. 3. The correlation between hard and soft tissue changes indicated that ${\Delta}HId/{\Delta}HLi,\;{\Delta}HId/{\Delta}LL-Eline,\;{\Delta}Hpt.B/{\Delta}HILS,\;and\;{\Delta}UI-FH/{\Delta}NL$ were significant. 4. More lower lip relative to upper lip retraction was demonstrated in relation to Rickett's E-line. The ratio between upper lip displacement was $50\%$, and between the lower incisor and lower lip displacement was $60\%$. We conclude from the results that the anterior subapical osteotomy is an efficient treatment severe dentoalveolar protrusion and desire rapid results.

본 연구는 입술 및 치아 돌출을 주소로 내원한 교정 환자를 소구치 발치와 근첨하 분절 골절단술로 전치부의 최대 후방 이동을 도모한 증례들에서 이로 인한 수술 전후의 측모 변화를 알아보고자 시행하였다 양악 전돌증을 동반한 골격성 제 I급 부정 교합 환자 20명의 수술 전과 후 측모 두부X-선 사진을 중첩하여 경조직 및 연조직의 변화를 평가하여 다음과 같은 결론을 얻었다. 1. 상악 전치부는 후방으로 치체 이동하였고, 하악 전치부는 후방으로 약간의 경사 이동하였다. 2. 수평 방향의 연조직 변화는 Nt와 Sn를 제외하고는 모든 항목이 유의성 있게 변화하였고, 수직 방향으로는 Ls는 하방으로, Li는 상방으로 유의성 있게 변화하였다. 3. 경조직변화에 대한 연조직변화의 상관 관계는 ${\Delta}HId/{\Delta}HLi,\;{\Delta}HId/{\Delta}LL-Eline,\;{\Delta}Hpt.B/{\Delta}HILS,\;and\;{\Delta}UI-FH/{\Delta}NL$에서 높게 나타났다. 4. Ricketts' E-line에 대해 상순변화에 비해 하순의 더 많은 후방 이동을 보였다. 상악 전치 변위에 대한 상순 변위 비율은 $50\%$였고, 하악 전치 변위에 대한 하순 변위 비율은 $60\%$였다. 위에서 언급된 결과로서, 근첨하 분절 골절단술은 심한 치조 전돌 환자에게 효율적인 치료법으로서 빠른 외모 개선의 결과를 가져오는 수술적 접근 방법이다

Keywords

References

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