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Impact of overdentures retained by a single mandibular implant on the swallowing threshold, quality of life and speech of edentulous elderly

Grant number: 18/23013-4
Support Opportunities:Scholarships in Brazil - Doctorate (Direct)
Effective date (Start): July 01, 2019
Effective date (End): May 31, 2021
Field of knowledge:Interdisciplinary Subjects
Principal Investigator:Renata Cunha Matheus Rodrigues Garcia
Grantee:Ingrid Andrade Meira
Host Institution: Faculdade de Odontologia de Piracicaba (FOP). Universidade Estadual de Campinas (UNICAMP). Piracicaba , SP, Brazil


The mandibular Complete Denture (CD) is frequent target of complaint of patients due to insufficient retention and stability, causing discomfort, masticatory and speech limitation of their users. These aspects direct influence the quality of life, important parameter for evaluation the success of prosthetic treatment. The advent of implant-retained prosthetic treatment allowed a significant improvement in the conditions of retention and stability of the mandibular CD. In this context, in mid-nineties, it was proposed the simplified treatment with overdenture retained by single implant in the mandibular symphysis region (SIO). In this context, there isn't any information in the scientific literature about the impact that SIO can provide on swallowing threshold and speech in the edentulous elderly, as well as, the perception of these patients in relation to the posterior rotational movement of PT and SIO. Therefore, this study has the aim to compare swallowing threshold, satisfaction with speech, mandibular prostheses posterior rotational movement and speech, as phonoarticulation characteristics, mandibular movement pattern, and pronunciation freeway space of the elderly rehabilitated, initially, with CDs, and posteriorly, with SIOs. For this research, will be selected 18 volunteers over age of 60 years users of both CDs. Initially, it will be done all evaluations with users wearing old CDs (baseline). Then, new maxillaries and mandibles CDs will be make. After the adaptation and two months of using the new prostheses, all the variables will be measured (T0). In the next step, the same volunteers will be submitted of the installation of single implant in the mandible midline area. After the osseointegration period, the mandibular CDs will be transformed into overdentures. All variables will be evaluated again two months after the overdentures installation (T1). The results collected will be submitted to statistical analysis using the appropriate tests. (AU)

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
PINHEIRO, MAYARA A.; MEIRA, INGRID A.; MAGNO, MARCELA B.; MAIA, LUCIANNE C.; RODRIGUES GARCIA, RENATA C.. Masticatory function improvement with the use of mandibular single-implant overdentures in edentulous subjects: a systematic literature review. MINERVA STOMATOLOGICA, v. 69, n. 4, p. 256-268, . (18/23013-4)
MEIRA, INGRID ANDRADE; PINHEIRO, MAYARA ABREU; BARRENO, ANDRES HUMBERTO CACERES; DE MORAES, MARCIO; GARCIA, RENATA CUNHA MATHEUS RODRIGUES. Speaking Space, Chewing Rotational Denture Movement, OHRQoL, and Patient Expectations for Single-Implant Mandibular Overdentures. International Journal of Prosthodontics, v. 35, n. 6, p. 7-pg., . (18/23013-4)
TALITA MALINI CARLETTI; INGRID ANDRADE MEIRA; LORENA TAVARES GAMA; MARIANA MARINHO DAVINO DE MEDEIROS; YURI WANDERLEY CAVALCANTI; RENATA CUNHA MATHEUS RODRIGUES GARCIA. Association of sociodemographic characteristics, mental health, and sleep quality with COVID-19 fear in an elderly Brazilian population. Braz. J. Oral Sci., v. 22, . (18/23013-4)
MEIRA, INGRID ANDRADE; PINHEIRO, MAYARA ABREU; PRADO-TOZZI, DANIELA ALMEIDA; CACERES-BARRENO, ANDRES HUMBERTO; DE MORAES, MARCIO; RODRIGUES GARCIA, RENATA CUNHA MATHEUS. peech and the swallowing threshold in single implant overdenture wearers: A paired control stud. Journal of Oral Rehabilitation, v. 48, n. 11, . (18/23013-4, 17/11098-2)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
MEIRA, Ingrid Andrade. Influence of prostheses over implants on speech and swallowing threshold of edentulous elderly people. 2021. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Faculdade de Odontologia de Piracicaba Piracicaba, SP.

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