H. Aguero-torres, L. Et, and . Fratiglioni, « Dementia is the major cause of functional dependence in the elderly : 3-year follow-up data from a population-based study, vol.88, pp.1452-56, 1998.

F. Allen, D. Et, and . Locker, « A modified short version of the oral health impact profile for assessing health-related quality of life in edentulous adults, International journal of prosthodontics, vol.15, issue.5, pp.446-50, 2002.

P. F. Allen and A. S. Mcmillan, « A review of the functional and psychosocial outcomes of edentulousness treated with complete replacement dentures, Journal -Canadian dental association, vol.69, issue.10, pp.662-662, 2003.

N. Amagai, Y. Komagamine, M. Kanazawa, M. Iwaki, A. Jo et al., « The effect of prosthetic rehabilitation and simple dietary counseling on food intake and oral health related quality of life among the edentulous individuals : a randomized controlled trial », Journal of dentistry, vol.65, pp.89-94, 2017.

, American psychiatric association, Hl. DSM-IV-TR : manuel diagnostique et statistique des troubles mentaux, 2004.

S. Aneja, V. A. Jeergal, A. Patel, A. Bhardwaj, N. Patel et al., « Assessment of various nutritional parameters in geriatric patients who underwent different prosthodontic treatments ». The journal of contemporary dental practice 17, pp.408-421, 2016.

M. A. Awad, J. A. Morais, S. Wollin, A. Khalil, and K. Gray-donald, et J.s. Feine. « Implant overdentures, vol.91, issue.1, pp.39-46, 2012.

R. Banu, F. , P. T. Veeravalli, E. A. Kumar, and V. , Comparative evaluation of changes in brain activity and cognitive function of edentulous patients, with dentures and two-implant supported mandibular overdenture-pilot study ». Clinical implant dentistry & related research 18, vol.3, pp.580-87, 2016.

N. Blanpain, G. Et, and . Buisson, « Projections de population à l'horizon, p.1619, 2016.

G. Boretti, M. Bickel, and A. H. Geering, « A review of masticatory ability and efficiency ». The journal of prosthetic dentistry 74, pp.80381-80387, 1995.

C. Boully, J. Poitreneau, L. Hugonot, M. Kalafat, B. Dubois et al., « Le Mini-Mental State Examination (MMSE) : un outil pratique pour l'évaluation de l'état cognitif des patients par le clinicien ». La presse médicale 28, vol.21, p.8, 1999.

G. Bouvier, enquête handicap-santé : présentation générale ». Institut national de la statistique et des études économiques, 2011.

, Caisse nationale de solidarité pour l'Autonomie. « Les chiffres clés de l'aide à l'autonomie ». Caisse nationale de solidarité pour l'Autonomie, 2017.

C. H. Campos, G. R. Ribeiro, and R. C. Garcia, « Mastication and oral health-related quality of life in removable denture wearers with Alzheimer disease ». The journal of prosthetic dentistry 119, pp.764-68, 2018.

D. Cerutti-kopplin, J. Feine, D. M. Padilha, R. F. Souza, M. Ahmadi et al., « Tooth loss increases the risk of diminished cognitive function : a systematic review and meta-analysis, JDR clinical & translational research, vol.1, issue.1, pp.10-19, 2016.

P. Y. Cousson, M. Bessadet, E. Nicolas, J. Veyrune, B. Lesourd et al., « Nutritional status, dietary intake and oral quality of life in elderly complete denture wearers, Gerodontology, vol.29, issue.2, pp.685-92, 2012.

R. A. Dable, G. S. Nazirkar, S. B. Singh, and P. B. Wasnik, « Assessment of oral health related quality of life among completely edentulous patients in western India by using GOHAI, Journal of clinical and diagnostic research, vol.7, issue.9, pp.2063-67, 2013.

R. J. De-marchi, F. N. Hugo, J. B. Hilgert, and D. M. Padilha, « Association between oral health status and nutritional status in south Brazilian independent-living older people, Nutrition, vol.24, issue.6, pp.546-53, 2008.

S. Drevet, G. Et, and . Gavazzi, « Dénutrition du sujet âgé ». La revue de médecine interne 40, vol.10, pp.664-69, 2019.

E. Emami, R. F. Souza, M. Kabawat, and J. S. Feine, « The impact of edentulism on oral and general health, International journal of dentistry, vol.2013, pp.1-7, 2013.

I. Ericsson, K. Aronsson, E. Cedersund, A. Hugoson, M. Jonsson et al., « The meaning of oral health-related quality of life for elderly persons with dementia, Acta odontologica scandinavica, vol.67, pp.212-233, 2009.

M. V. Eustaquio-raga, J. M. Montiel-company, and J. , Almerich-Silla. « Factors associated with edentulousness in an elderly population in Valencia (Spain) ». Gaceta sanitaria 27, pp.123-150, 2013.

C. M. Faggion, Critical appraisal of evidence supporting the placement of dental implants in patients with neurodegenerative diseases, Gerodontology, vol.33, issue.1, pp.2-10, 2016.

M. Farella, M. Bakke, A. Michelotti, G. Marotta, and R. Martina, « Cardiovascular responses in humans to experimental chewing of gums of different consistencies », Archives of oral biology, vol.44, issue.10, pp.74-80, 1999.

J. Feine, G. E. Carlsson, M. A. Awad, A. Chehade, W. J. Duncan et al., The McGill consensus statement on overdentures. Mandibular two-implant overdentures as first choice standard of care for edentulous patients, Gerodontology, vol.19, issue.1, pp.3-4, 2002.

D. A. Felton, Complete edentulism and comorbid diseases : an update », Journal of prosthodontics, vol.25, issue.1, pp.5-20, 2016.

N. C. Foley, R. H. Affoo, W. L. Siqueira, and R. E. Martin, « A systematic review examining the oral health status of persons with dementia, JDR clinical & translational research, vol.2, issue.4, pp.330-372, 2017.

K. Fueki, K. Kimoto, T. Ogawa, and N. R. Garrett, « Effect of implant-supported or retained dentures on masticatory performance : a systematic review ». The journal of prosthetic dentistry 98, pp.470-77, 2007.

M. Furuta, M. Komiya-nonaka, S. Akifusa, Y. Shimazaki, M. Adachi et al., « Interrelationship of oral health status, swallowing function, nutritional status, and cognitive ability with activities of daily living in Japanese elderly people receiving home care services due to physical disabilities ». Community dentistry & oral epidemiology 41, pp.173-81, 2013.

O. Geckili, H. Bilhan, E. Mumcu, C. Dayan, A. Yabul et al., « Comparison of patient satisfaction, quality of life, and bite force between elderly edentulous patients wearing mandibular two implant-supported overdentures and conventional complete dentures after 4 years, Special care in dentistry, vol.32, issue.4, pp.136-177, 2012.

J. A. Gil-montoya, I. Sanchez-lara, C. Carnero-pardo, F. Fornieles, J. Montes et al., « Is periodontitis a risk factor for cognitive impairment and dementia ? : a case-control study », Journal of periodontology, vol.86, issue.2, pp.244-53, 2015.

K. Goel, S. V. Singh, P. Chand, J. Rao, S. Tripathi et al., Abbas Ali Mahdi, et Kalpana Singh. « Impact of different prosthodontic treatment modalities on nutritional parameters of elderly patients, Journal of prosthodontics, vol.25, issue.1, pp.21-27, 2016.

K. Gotfredsen, A. W. Et, and . Walls, « What dentition assures oral function ?, Clinical oral implants research, vol.18, pp.34-45, 2007.

M. O. Hamada, N. R. Garrett, E. D. Roumanas, K. K. Kapur, E. Freymiller et al., « A randomized clinical trial comparing the efficacy of mandibular implantsupported overdentures and conventional dentures in diabetic patients. Part IV, Comparisons of dietary intake ». The journal of prosthetic dentistry 85, pp.53-60, 2001.

M. Hickson and . Malnutrition, Postgraduate medical journal, vol.82, issue.963, pp.2-8, 2006.

Y. Hirano, T. Obata, K. Kashikura, H. Nonaka, A. Tachibana et al., « Effects of chewing in working memory processing, Neuroscience letters, vol.436, issue.2, pp.189-92, 2008.

T. Hosoi, M. Morokuma, N. Shibuya, and Y. Yoneyama, « Influence of denture treatment on brain function activity ». Japanese dental science review 47, pp.56-66, 2011.

, ensemble 60 ans et plus, France métropolitaine, Institut national de la statistique et des études économiques. « Population au 1er janvier, 2016.

A. R. Kamer, A. P. Dasanayake, R. G. Craig, L. Glodzik-sobanska, M. Bry et al., Alzheimer's disease and peripheral infections: the possible contribution from periodontal infections, model and hypothesis, Journal of Alzheimer's disease, vol.13, pp.437-486, 2008.

K. Kamiya, N. Narita, and E. S. Iwaki, « Improved prefrontal activity and chewing performance as function of wearing denture in partially edentulous elderly individuals : functional near-infrared spectroscopy study, PLoS one, vol.11, issue.6, pp.1-21, 2016.

P. Karmacharya, S. Saha, and M. Kumari, « Comparison of chewing ability, oral health-related quality of life, and nutritional status before and after the insertion of complete denture among edentulous patients in Lucknow ». Journal of indian association of public health dentistry 15, pp.145-50, 2017.

N. J. Kassebaum, E. Bernabé, M. Dahiya, B. Bhandari, C. J. Murray et al., « Global burden of severe tooth loss, Journal of dental research, vol.93, issue.7, pp.20-28, 2014.

A. L. Klotz, A. J. Hassel, J. Schröder, P. Rammelsberg, and A. Zenthöfer, « Oral health-related quality of life and prosthetic status of nursing home residents with or without dementia, Clinical interventions in aging, vol.12, pp.659-65, 2017.

A. Kutkut, E. Bertoli, R. Frazer, G. Pinto-sinai, R. F. Hidalgo et al., « A systematic review of studies comparing conventional complete denture and implant retained overdenture », Journal of prosthodontic research, vol.62, issue.1, pp.1-9, 2018.

M. Lacoste-ferré, D. Duran, and B. Vellas, « Maladie d'Alzheimer et odontologie ». Actualités odonto-stomatologiques, vol.263, pp.8-18, 2013.

M. Lamy, . Ph, G. Mojon, R. Kalykakis, E. Legrand et al., « Oral status and nutrition in the institutionalized elderly, Journal of dentistry, vol.27, issue.6, pp.443-491, 1999.

V. Lester, F. P. Ashley, and D. E. Gibbons, « The relationship between socio-dental indices of handicap, felt need for dental treatment and dental state in a group of frail and functionally dependent older adults ». Community dentistry & oral epidemiology 26, pp.155-59, 1998.

S. Madhuri, S. Hegde, S. Ravi, A. Deepti, and M. Simpy, « Comparison of chewing ability, oral health related quality of life and nutritional status before and after insertion of complete denture amongst edentulous patients in a dental college of Pune, Ethiopian journal of health sciences, vol.24, pp.253-60, 2014.

S. Maniewicz, R. Buser, E. Duvernay, L. Vazquez, A. Loup et al., « Short dental implants retaining two-implant mandibular overdentures in very old, dependent patients: radiologic and clinical observation up to 5 years ». The international journal of oral & maxillofacial implants 32, pp.415-437, 2017.

S. Maniewicz, E. Duvernay, M. Srinivasan, T. Perneger, M. Schimmel et al., « Effect of implantsupported mandibular overdentures versus reline on masticatory performance and salivary flow rates in very old adults : a randomized clinical trial ». Clinical oral implants research 30, pp.59-67, 2019.

A. L. Martone and J. W. Black, « An approach to prosthodontics through speech science. Part IV, Physiology of speech ». The journal of prosthetic dentistry 12, vol.3, pp.409-428, 1962.

F. Melas, W. Marcenes, and P. S. Wright, « Oral health impact on daily performance in patients with implant-stabilized overdentures and patients with conventional complete dentures, International journal of oral & maxillofacial implants, vol.16, issue.5, pp.700-712, 2001.

I. Miyamoto, K. Yoshida, Y. Tsuboi, and T. Iizuka, « Rehabilitation with dental prosthesis can increase cerebral regional blood volume », Clinical oral implants research, vol.16, issue.6, pp.723-750, 2005.

P. Mojon, M. I. Et, and . Macentee, « Discrepancy between need for prosthodontic treatment and complaints in an elderly edentulous population ». Community dentistry and oral epidemiology 20, pp.48-52, 1992.

T. Momose, J. Nishikawa, T. Watanabe, Y. Sasaki, M. Senda et al., Effect of mastication on regional cerebral blood flow in humans examined by positron-emission tomography with 15 O-labelled water and magnetic resonance imaging ». Archives of oral biology 42, pp.81-88, 1997.

J. Montero, R. Castillo-oyagüe, C. D. Lynch, A. Albaladejo, and A. Castaño, « Self-perceived changes in oral health-related quality of life after receiving different types of conventional prosthetic treatments : a cohort follow-up study, Journal of dentistry, vol.41, issue.6, pp.493-503, 2013.

J. A. Morais, G. Heydecke, J. Pawliuk, J. P. Lund, and J. S. Feine, « The effects of mandibular twoimplant overdentures on nutrition in elderly edentulous individuals, Journal of dental research, vol.82, issue.1, pp.53-58, 2008.

P. .. Moynihan, A. Elfeky, J. S. Ellis, C. J. Seal, R. M. Hyland et al., « Do implantsupported dentures facilitate efficacy of eating more healthily ?, Journal of dentistry, vol.40, issue.10, pp.843-50, 2012.

F. Müller, E. Duvernay, A. Loup, L. Vazquez, F. R. Herrmann et al., « Implant-supported mandibular overdentures in very old adults : a randomized controlled trial, Journal of dental research, vol.92, pp.154-160, 2013.

E. Musacchio, E. Perissinotto, P. Binotto, L. Sartori, F. Silva-netto et al., « Tooth loss in the elderly and its association with nutritional status, socio-economic and lifestyle factors ». Acta odontologica scandinavica 65, pp.78-86, 2007.

O. Naka, V. Anastassiadou, and A. Pissiotis, « Association between functional tooth units and chewing ability in older adults: a systematic review, Gerodontology, vol.31, issue.s1, pp.3-32, 2006.

D. Niesten, D. Witter, E. Bronkhorst, and N. Creugers, « Oral health-related quality of life and associated factors in a care-dependent and a care-independent older population, Journal of dentistry, vol.55, pp.33-39, 2016.

G. Nordenram, T. Davidson, G. Gynther, G. Helgesson, M. Hultin et al., « Qualitative studies of patients' perceptions of loss of teeth, the edentulous state and prosthetic rehabilitation: A systematic review with meta-synthesis ». Acta odontologica scandinavica 71, vol.3, pp.938-52, 2013.

N. Okamoto, M. Morikawa, K. Okamoto, N. Habu, K. Hazaki et al., « Tooth loss is associated with mild memory impairment in the elderly : the Fujiwara-kyo study », Brain research, vol.1349, pp.68-75, 2010.

N. Okamoto, M. Morikawa, M. Yanagi, N. Amano, K. Tomioka et al., « Association of tooth loss with development of swallowing problems in community-dwelling independent elderly population: the fujiwara-kyo study ». The journals of gerontology. series a, biological sciences and medical sciences 70, vol.12, pp.1548-54, 2015.

M. Onozuka, M. Fujita, K. Watanabe, Y. Hirano, M. Niwa et al., « Age-related changes in brain regional activity during chewing: a functional magnetic resonance imaging study, Mapping brain region activity during chewing : a functional magnetic resonance imaging study, vol.82, pp.743-789, 2002.

M. Onozuka, K. Watanabe, S. M. Mirbod, S. Ozono, K. Nishiyama et al., « Reduced mastication stimulates impairment of spatial memory and degeneration of hippocampal neurons in aged SAMP8 mice, Brain research, vol.826, issue.1, pp.148-53, 1999.

M. Packer, T. V.-nikitin, D. M. Coward, J. Davis, and . Fiske, « The potential benefits of dental implants on the oral health quality of life of people with Parkinson's disease », Gerodontology, vol.26, issue.1, pp.11-18, 2009.

T. Palomares, J. Montero, E. M. Rosel, R. Del-castillo, and J. I. Rosales, « Oral health-related quality of life and masticatory function after conventional prosthetic treatment : a cohort follow-up study ». The journal of prosthetic dentistry 119, pp.755-63, 2017.

P. Perumal, G. N. Chander, K. V. Anitha, J. R. Reddy, and B. Muthukumar, « Power spectrum density analysis for the influence of complete denture on the brain function of edentulous patientspilot study, Journal of advanced prosthodontics, vol.8, issue.3, pp.187-93, 2016.

G. Pison, 2018 : quatre surprises démographiques en France depuis cinquante ans ». Population et sociétés, vol.553, pp.1-6, 1968.

J. Porter, A. Ntouva, A. Read, M. Murdoch, D. Ola et al., « The impact of oral health on the quality of life of nursing home residents ». Health & quality of life outcomes 13, pp.1-8, 2015.

N. Prakash, N. Kalavathy, J. Sridevi, and K. Premnath, « Nutritional status assessment in complete denture wearers, Gerodontology, vol.29, issue.3, pp.224-254, 2012.

G. R. Ribeiro, C. H. Campos, and R. C. Garcia, « Influence of a removable prosthesis on oral health-related quality of life and mastication in elders with Parkinson disease ». The journal of prosthetic dentistry 118, pp.637-679, 2017.

M. V. Saintrain and E. H. Souza, « Impact of tooth loss on the quality of life, Gerodontology, vol.29, issue.2, pp.632-668, 2012.

M. Schimmel, F. Müller, V. Suter, and E. D. Buser, « Implants for elderly patients, Periodontology, vol.73, issue.1, pp.228-268, 2000.

N. G. Sebring, A. D. Guckes, G. H. Li, and G. R. Mccarthy, « Nutritional adequacy of reported intake of edentulous subjects treated with new conventional or implant-supported mandibular dentures ». The journal of prosthetic dentistry 74, pp.80374-80383, 1995.

R. S. Shinkai, J. P. Hatch, J. D. Rugh, S. Sakai, C. C. Mobley et al., « Dietary intake in edentulous subjects with good and poor quality complete dentures ». The journal of prosthetic dentistry, vol.87, pp.490-98, 2002.

I. Sivakumar, S. Sajjan, A. V. Ramaraju, and B. Rao, « Changes in oral health-related quality of life in elderly edentulous patients after complete denture therapy and possible role of their initial expectation : a follow-up study », Journal of prosthodontics, vol.24, issue.6, pp.452-56, 2015.

. Sun, J. Xu, J. Zhai, M. Liao, A. Teng et al., « Masticatory efficiency and oral healthrelated quality of life with implant-retained mandibular overdentures, Saudi medical journal, vol.35, issue.10, pp.1195-1202, 2014.

A. Tada, H. Et, and . Miura, « Association between mastication and cognitive status : a systematic review, Archives of gerontology and geriatrics, vol.70, pp.44-53, 2017.

T. Taji, M. Yoshida, K. Hiasa, Y. Abe, K. Tsuga et al., « Influence of mental status on removable prosthesis compliance in institutionalized elderly persons, International journal of prosthodontics, vol.18, issue.2, pp.146-195, 2005.

J. M. Thomason, J. Feine, C. Exley, P. Moynihan, F. Müller et al., « Mandibular two implant-supported overdentures as the first choice standard of care for edentulous patients : the York consensus statement, British dental journal, vol.207, pp.185-86, 2009.

M. Toman, S. Toksavul, A. Saracoglu, C. Cura, and A. Hatipoglu, « Masticatory performance and mandibular movement patterns of patients with natural dentitions, complete dentures, and implant-supported overdentures ». The international journal of prosthodontics 25, pp.135-172, 2012.

M. P. Toniazzo, P. Amorim, F. W. Muniz, and P. Weidlich, « Relationship of nutritional status and oral health in elderly : systematic review with meta-analysis », Clinical nutrition, vol.37, issue.3, pp.824-854, 2018.

J. L. Veyrune, S. Tubert-jeannin, C. Dutheil, and . Riordan, Impact of new prostheses on the oral health related quality of life of edentulous patients, Gerodontology, vol.22, issue.1, pp.3-9, 2005.

M. Vigild, Benefit related assessment of treatment need among institutionalised elderly people, Gerodontology, vol.10, pp.10-15, 1993.

J. Virués-ortega, J. De-pedro-cuesta, J. L. Barrio, J. Almazan-isla, A. Bergareche et al., « Medical, environmental and personal factors of disability in the elderly in spain: a screening survey based on the international classification of functioning », Gaceta sanitaria, vol.25, pp.29-38, 2011.

A. Visser, J. A. Henny, G. M. Meijer, A. Raghoebar, and . Vissink, « Implant-retained mandibular overdentures versus conventional dentures: 10 years of care and aftercare, International journal of prosthodontics, vol.19, issue.3, pp.271-78, 2006.

T. Vos, A. A. Abajobir, K. H. Abate, C. Abbafati, K. M. Abbas et al., « Global, regional, and national incidence, prevalence, and years lived with disability for 328 diseases and injuries for 195 countries, 1990-2016: a systematic analysis for the global burden of disease study, vol.390, pp.1211-59, 2016.

R. A. Weijenberg, F. Lobbezoo, C. M. Visscher, and E. J. Scherder, « Oral mixing ability and cognition in elderly persons with dementia: A cross-sectional study », Journal of oral rehabilitation, vol.42, issue.7, pp.481-86, 2015.

R. A. Weijenberg, E. J. Scherder, and F. Lobbezoo, « Mastication for the mind : the relationship between mastication and cognition in ageing and dementia, Neuroscience & biobehavioral reviews, vol.35, issue.3, pp.483-97, 2011.

F. Wen-li, J. Mu-jun, G. Bei-bei, W. Ying-mei, F. Sheng-nuo et al., Tooth loss as a risk factor for dementia : systematic review and meta-analysis of 21 observational studies », BMC psychiatry, vol.18, pp.1-11, 2018.

R. J. Wilding and C. P. Owen, « The prevalence of temporomandibular joint dysfunction in edentulous non-denture wearing individuals », Journal of oral rehabilitation, vol.14, issue.2, pp.175-82, 1987.

A. Woda, M. Hennequin, and M. A. Peyron, World health organization. « WHOQOL : measuring quality of life, Journal of oral rehabilitation, vol.38, issue.10, pp.781-84, 1997.

B. Wöstmann, K. Michel, B. Brinkert, A. Melchheier-weskott, P. Rehmann et al., « Influence of denture improvement on the nutritional status and quality of life of geriatric patients, Journal of dentistry, vol.36, issue.10, pp.816-837, 2008.

S. Yamamoto, H. Et, and . Shiga, « Masticatory performance and oral health-related quality of life before and after complete denture treatment, Journal of prosthodontic research, vol.62, pp.370-74, 2018.

T. Yamazaki, A. L. Martiniuk, K. Irie, S. Sokejima, and C. M. Lee, « Does a mandibular overdenture improve nutrient intake and markers of nutritional status better than conventional complete denture ? : a systematic review and meta-analysis, BMJ open, vol.6, pp.1-9, 2016.

A. Zenthöfer, P. Rammelsberg, T. Cabrera, and E. A. Hassel, « Prosthetic rehabilitation of edentulism prevents malnutrition in nursing home residents, International journal of prosthodontics, vol.28, issue.2, pp.198-200, 2015.

A. Zenthöfer, P. Rammelsberg, T. Cabrera, J. Schröder, and A. J. Hassel, « Determinants of oral healthrelated quality of life of the institutionalized elderly, Psychogeriatrics, vol.14, issue.4, pp.247-54, 2014.

, Mass Index CFQ : chewing Function Questionnaire GTI : Global Transition Index : Index global de changement entre 2 évaluations de l'OHIP OES : Oral Esthetic Scale OSS : Oral Satisfaction Scale : Echelle visuelle analogique permettant au patient d'évaluer sa satisfaction globale tant sur l'esthétique, que sur la fonction masticatoire, Explication des abréviations du tableau I : BMI : Body