Horizontal alteration of anterior alveolar ridge after immediate implant placement: A retrospective cone beam computed tomography analysis
현영근, Lee Chung-Yun, Keerthana Subramanian, Ramasamy Selvaponpriya, 송소연, 심지석, 류재준,
소속 상세정보
현영근 ( Hyun Young-Keun ) - Periodontal Dental Clinic
( Lee Chung-Yun ) - Korea University Graduate School of Clinical Dentistry
( Keerthana Subramanian ) - Korea University Graduate School of Clinical Dentistry
( Ramasamy Selvaponpriya ) - Korea University Graduate School of Clinical Dentistry
송소연 ( Song So-Yeon ) - Korea University Guro Hospital Department of Dentistry
심지석 ( Shim Ji-Suk ) - Korea University Guro Hospital Department of Dentistry
류재준 ( Ryu Jae-Jun ) - Korea University Anam Hospital Department of Dentistry
Abstract
PURPOSE: The aim of this study was to evaluate the labio-lingual alterations of the alveolar bone where the implant was placed immediately after tooth extraction.
MATERIALS AND METHODS: Implants were placed immediately after tooth extraction on anterior alveolar ridges in the maxilla and mandible. The pin-guide system was used to help determine the location and path of implants during the surgical process. The horizontal distance from implants to the outer border of alveolar bone was measured at the rim and middle of the implants in the cone beam computed tomography images. The alteration of alveolar bone was evaluated comparing the horizontal distances measured immediately after surgery and 3 months after surgery.
RESULTS: The results show that more resorption occurred towards the labial bone than the lingual bone in the maxilla. A similar amount of labial and lingual bone resorption was observed in the mandible.
CONCLUSION: Considering the horizontal alteration of alveolar bone, labio-lingual positioning of the implant towards the lingual bone in the maxilla and at the center of the alveolar ridge in the mandible is recommended when it is placed immediately after tooth extraction.
키워드
Dental implant; Alveolar ridge; Alveolar resorption; Tooth extraction; Cone-beam computed tomography
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