期刊
MEDICINA-LITHUANIA
卷 58, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/medicina58040501
关键词
osseoperception; tactile sensibility; interocclusal thickness; interocclusal perception
This study conducted a systematic review on tactile sensibility threshold in periodontium and prosthetic rehabilitations. The results showed that implant prostheses have similar and lower thresholds compared to natural dentition, indicating increased tactile sensibility. The differences in active tactile sensibility thresholds were smaller than those in passive tactile sensibility thresholds, which were influenced by receptors from periodontal or periimplant tissues.
Background and Objectives: The periodontium has important proprioceptive receptors that prevent teeth from using excessive occlusal forces during chewing. There are other receptors from adjacent tissues that replace periodontal ones when teeth are extracted and rehabilitated with prosthesis, although they seem to be less effective. Psychophysical studies investigate tactile sensibility thresholds, which are useful to measure this masticatory efficiency in different prosthetic rehabilitations. There are two types of sensibility depending on the receptors that are activated during these studies: active and passive tactile sensibility. The purpose of this study is to obtain active and passive tactile sensibility threshold figures in natural dentition and prosthetic rehabilitations so we can compare them and understand how this sensibility works in different situations. Materials and Methods: We performed a systematic review of the available literature, following PRISMA guidelines and including articles from 2004 to 2021 in the MEDLINE database. Only 10 articles were included in this investigation as they provided concrete threshold figures. Results: The mean values of active tactile sensibility thresholds in complete dentures, implant prosthesis and natural dentition are 64 mu, 23.3 mu and 16.1 mu, respectively. The mean values of passive tactile sensibility thresholds in implant prosthesis and natural dentition are 6.7 N and 0.8 N, respectively. Conclusions: Implant prosthesis have lower thresholds, that are very close to those present in natural dentition, than complete dentures due to an increased tactile sensibility. Active tactile sensibility thresholds present fewer differences between values than passive tactile ones; as these are only influenced by receptors from periodontal or periimplant tissues.
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