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Different Types of Antagonists Modify the Outcome of Complete Denture Renewal

  • Autores: Marie Violaine Berteretche, Amélie Frot, Alain Woda, Bruno Pereira, Martine Hennequin
  • Localización: The International Journal of Prosthodontics, ISSN-e 1942-4426, Vol. 28, Nº. 3, 2015, págs. 270-278
  • Idioma: inglés
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  • Resumen
    • Purpose: The effect of renewing removable dentures on masticatory function was evaluated according to the occlusion offered by different types of mandibular arches. Materials and Methods: Twenty-eight patients with complete maxillary dentures were subdivided into three groups in terms of mandibular dentition type: dentate, partial denture, and complete denture. The participants were observed before and 8 weeks after maxillary denture renewal. The mandibular denture was also renewed in the partial and complete denture groups. The participants masticated carrots, peanuts, and three model foods of different hardnesses. The particle size distribution of the boluses obtained from natural foods was characterized by the median particle size (d50) in relation to the masticatory normative indicator (MNI). Chewing time (CT), number of chewing cycles (CC), and chewing frequency (CF) were video recorded. A self-assessment questionnaire for oral health–related quality of life (Geriatric Oral Health Assessment Index [GOHAI]) was used. Statistical analyses were carried out with a mixed model. Results: Renewal of the dentures decreased d50 (P < .001). The number of participants with d50 values above the MNI cutoff decreased from 12 to 2 after renewal. Renewal induced an increase in mean CF while chewing model foods (P < .001). With all foods, renewal tended to affect CT, CC, and CF differently among the three groups (statistically significant renewal Å~ group interactions). The GOHAI score increased significantly for all groups. Conclusions: Denture renewal improves masticatory function. The complete denture group benefited least from renewal; the dentate group benefited most. This study confirmed the usefulness of denture renewal for improving functions and oral health– related quality of life.


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