title: A randomised trial on simplified and conventional methods for complete denture fabrication: masticatory performance and ability.
abstract: OBJECTIVE
  To compare a simplified method to a conventional protocol for complete denture fabrication regarding masticatory performance and ability.
  
  
  METHODS
  A sample was formed by edentulous patients requesting treatment with maxillary and mandibular complete dentures. Participants were randomly divided into two groups: Group S, which received dentures fabricated by a simplified method, and Group C (n=21 each), which received conventionally fabricated dentures. After three months following insertion, masticatory performance was evaluated by a colorimetric assay based on chewing two capsules as test food during twenty and forty cycles. Masticatory ability was assessed by a questionnaire with binary answers and a single question answered by means of a 0-10 scale. A third group (DN) formed by seventeen dentate volunteers served as an external comparator. Groups were compared by statistical tests suitable for data distribution (α=0.05).
  
  
  RESULTS
  Thirty-nine participants were assessed for three months (twenty from Group C and nineteen from Group S). Groups C and S presented similar masticatory performance which corresponded to approximately 30% of Group DN. Results for masticatory ability showed similarity between S and C, regardless of the assessment method, although an isolate questionnaire item showed more favourable results for the first group.
  
  
  CONCLUSIONS
  The simplified method for complete denture fabrication is able to restore masticatory function to a level comparable to a conventional protocol, both physiologically and according to patient's perceptions.
  
  
  CONCLUSIONS
  Although masticatory function is impaired by the loss of natural teeth and dentures can restore only a fraction of such function, patients can benefit from a simplified protocol for complete denture fabrication to the same extent they would by conventional techniques.
authors.affiliation: University of São Paulo, Ribeirão Preto Dental School, Av. do Café s/n, 14040-904 Ribeirão Preto, SP, Brazil.
authors.forename: T R
authors.initials: TR
authors.lastname: Cunha
authors.forename: M P
authors.initials: MP
authors.lastname: Della Vecchia
authors.forename: R R
authors.initials: RR
authors.lastname: Regis
authors.forename: A B
authors.initials: AB
authors.lastname: Ribeiro
authors.forename: V A
authors.initials: VA
authors.lastname: Muglia
authors.forename: W
authors.initials: W
authors.lastname: Mestriner
authors.forename: R F
authors.initials: RF
authors.lastname: de Souza
mesh_terms: D000368:Aged; D059925:Anatomic Landmarks / Q000473:pathology; D003124:Colorimetry / Q000379:methods; D004396:Coloring Agents; D003725:Dental Articulators; D003761:Dental Impression Technique; D003767:Dental Occlusion, Balanced; D003819:Denture Bases; D003779:Denture Design; D003824:Denture, Complete; D004435:Eating / Q000502:physiology; D005260:Female; D005500:Follow-Up Studies; D005502:Food; D006801:Humans; D007574:Jaw Relation Record / Q000295:instrumentation / Q000379:methods; D008297:Male; D008409:Mastication / Q000502:physiology*; D008875:Middle Aged; D009066:Mouth, Edentulous / Q000534:rehabilitation; D017060:Patient Satisfaction; D011145:Polyvinyls / Q000737:chemistry; D012394:Rosaniline Dyes; D013053:Spectrophotometry; D011795:Surveys and Questionnaires; D016896:Treatment Outcome
chemical_list: D004396:Coloring Agents; D011145:Polyvinyls; D012394:Rosaniline Dyes; C013215:polyvinyl acetate