Alterations of the soft tissue dimensions around implant-supported singletooth replacements in the maxillary anterior region - A retrospective longitudinal study -

상악 전치부 임플란트지지 수복금관의 주변 연조직 제원 변화에 관한 누년적 연구

  • Chang, Moon-taek (Department of Periodontology/lnstitute of Oral Bio-science, College of Dentistry, Chonbuk National University, Departments of Periodontology and Prosthetic Dentistry, Faculty of odontology, Goteborg University)
  • 장문택 (전북대학교 치과대학 치주과학교실/구강생체과학 연구소, 스웨덴 예테보리 대학교 치과대학 치주/보철과학교실)
  • Published : 1998.09.30

Abstract

This study was performed to investigate the soft tissue changes around single implant-supported crowns during followup periods. Twenty patients(31 implants) whose single missing tooth in the maxillary anterior region had been replaced with an single implant-supported crown were recruited for the study. Crown length, soft tissue level and papilla height at the single implant-supported crowns were measured at follow-up examination and calculated from the slides taken at time of crown placement. as well Papilla index was scored from the slides taken at the time of crown placement and follow-up examination. A very little amount of recession occurred and the soft tissue level moved more apically and the papilla height increased significantly (p<0.01). Especially, both mesial and distal papilla index at single implant-supported crowns increased significantly during follow-up periods (p<0.001). When the two slides taken at the time of crown placement and follow-up were compared simultaneously, except one site, papillae size increased at all sites. From the results of the study, the interdental papillae at the single implant-supported crowns seemed to regenerate significantly and their crown margins were stable during follow-up periods. Hence it is indicated that various surgical interventions at on early stage to enhance soft tissue esthetics arourd single implants may be unnecessary.

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