title: Overdentures on natural teeth: a new approach.
abstract: OBJECTIVE
  The study presents a new type of copings for overdentures on natural teeth.
  
  
  METHODS
  A new type of custom-made copings was prepared on 10 extracted teeth and their marginal fit was observed microscopically by means of a mechanical device, and software was employed to measure the gap.
  
  
  RESULTS
  The marginal fit evaluation gave satisfactory values with mean values of the gap measurements below the clinically accepted limits (mean gap: 25.3 microm; minimum 7.3 microm, maximum 56.5 microm).
  
  
  CONCLUSIONS
  The advantages of these new copings are: the rapidity of their preparation; the protection of the root canal treatment, because the coping with this chair-side method is prepared and cemented in one session; the low costs.
authors.affiliation: Unit of Oral Rehabilitation and Maxillofacial Prosthesis, School of Dentistry, Department of Biomedical Sciences and Human Oncology, University of Turin, Turin, Italy.
authors.forename: V
authors.initials: V
authors.lastname: Previgliano
authors.forename: S
authors.initials: S
authors.lastname: Barone Monfrin
authors.forename: G
authors.initials: G
authors.lastname: Santià
authors.forename: G
authors.initials: G
authors.lastname: Preti
mesh_terms: D003793:Dental Restoration, Permanent / Q000379:methods*; D003828:Denture, Overlay; D006801:Humans