Compromised extraction sockets: a new classification and prevalence involving both soft and hard tissue loss
김정주, Amara Heithem Ben, 정인나, 구기태,
소속 상세정보
김정주 ( Kim Jung-Ju ) - Seoul National University School of Dentistry Department of Periodontology
( Amara Heithem Ben ) - Seoul National University School of Dentistry Department of Periodontology
정인나 ( Chung In-Na ) - Seoul National University School of Dentistry Department of Periodontology
구기태 ( Koo Ki-Tae ) - Seoul National University School of Dentistry Department of Periodontology
Abstract
Purpose: Previous studies have solely focused on fresh extraction sockets, whereas in clinical settings, alveolar sockets are commonly associated with chronic inflammation. Because the extent of tissue destruction varies depending on the origin and the severity of inflammation, infected alveolar sockets may display various configurations of their remaining soft and hard tissues following tooth extraction. The aim of this study was to classify infected alveolar sockets and to provide the appropriate treatment approaches.
Methods: A proposed classification of extraction sockets with chronic inflammation was developed based upon the morphology of the bone defect and soft tissue at the time of tooth extraction. The prevalence of each type of the suggested classification was determined retrospectively in a cohort of patients who underwent, between 2011 and 2015, immediate bone grafting procedures (ridge preservation/augmentation) after tooth extractions at Seoul National University Dental Hospital.
Results: The extraction sockets were classified into 5 types: type I, type II, type III, type IV (A & B), and type V. In this system, the severity of bone and soft tissue breakdown increases from type I to type V, while the reconstruction potential and treatment predictability decrease according to the same sequence of socket types. The retrospective screening of the included extraction sites revealed that most of the sockets assigned to ridge preservation displayed features of type IV (86.87%).
Conclusions: The present article classified different types of commonly observed infected sockets based on diverse levels of ridge destruction. Type IV sockets, featuring an advanced breakdown of alveolar bone, appear to be more frequent than the other socket types.
키워드
Alveolar ridge augmentation; Classification; Periodontitis; Socket graft; Tooth socket
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