Halitosis and Pain Threshold of Peri-Implant Tissues: An Observational Cohort Study

Author(s)

João Paulo do Vale Souza ^[1] ; Giovana Dornelas Azevedo Romero ^[2] ; Clóvis Lamartine de Moraes Melo Neto ^[3] ; Lucas Tavares Piacenza ^[4] ; Renata Vasconcelos Monteiro ^[5] ; Emily Vivianne Freitas da Silva ^[6] ; Daniela Micheline dos Santos ^[7] ; Marcelo Coelho Goiato ^[8]

Affiliation

^[1] Universidade Estadual Paulista "Júlio de Mesquita Filho" - Brasil

^[2] Universidade Estadual Paulista "Júlio de Mesquita Filho" - Brasil

^[3] Universidade Estadual Paulista "Júlio de Mesquita Filho" - Brasil

^[4] Universidade Estadual Paulista "Júlio de Mesquita Filho" - Brasil

^[5] University of Louisville - Estados Unidos

^[6] Universidade de São Paulo - Brasil

^[7] Universidade Estadual Paulista "Júlio de Mesquita Filho" - Brasil

^[8] Universidade Estadual Paulista "Júlio de Mesquita Filho" - Brasil

• Document type: Journal article
• Source: Brazilian Dental Journal; v. 34, n. 6, p. 1-9, 2023-12-11.

Abstract

Abstract In this study, we aimed to evaluate the halitosis and pain threshold of the peri-implant soft tissues in individuals rehabilitated with implant-supported prostheses. Forty-eight subjects were divided into four groups (n = 12) according to their prosthetic rehabilitation: single-tooth fixed prosthesis, multi-tooth fixed prosthesis, overdentures, and the Brånemark protocol. Halitosis was measured using a halimeter, whereas the pain threshold was measured using Von Frey monofilaments. Measurements were taken before (t0) and 30 days after (t1) placement of healing caps, and at the time of (t2) and 30 days after (t3) prosthetic placement. Halitosis data were analyzed using the chi-square test and Bonferroni correction (p < 0.05). Two-way ANOVA and Tukey’s test (p < 0.05) were used to analyze pain threshold data. We noted an association between halitosis and time for the Brånemark protocol [X2(6) = 18.471; p = 0.005] and overdenture groups [X2(6) = 17.732; p = 0.007], and between halitosis and type of prosthesis only at t0 [X2(6) = 12.894; p = 0.045]. The interaction between time and the type of prosthesis significantly interfered with the mean pain threshold values (p = 0.001). At most time points, the majority of participants in each group had clinically unacceptable halitosis. After 30 days of using the prostheses, the overdenture group had a lower pain threshold compared to the Brånemark protocol group. (AU)

• FAPESP's process: 19/16900-7 - Evaluation of halitosis in rehabilitated patients with complete dentures on single and/or multiple implants
• Grantee: Giovana Dornelas Azevedo Romero
• Support Opportunities: Scholarships in Brazil - Scientific Initiation