title: Implant-prosthodontic classification of the edentulous jaw for treatment planning with fixed rehabilitations.
abstract: OBJECTIVE
  This study aimed to develop a classification of edentulous jaws for use as a diagnostic tool during implant-prosthodontic treatment planning.
  
  
  METHODS
  The morphology of 200 fully edentulous alveolar ridges (100 maxillae, 100 mandibles) was assessed with cone beam computed tomography. Generic implants (length: 8 mm; diameter: 4.1 mm) were used. To develop the classification system, the feasibility of virtually placing the implants without vertical ridge augmentation was considered. Potential implant sites were evaluated in terms of ridge width and described as either type A (no horizontal augmentation required) or type B (horizontal augmentation required). A descriptive statistical analysis of subjects' age, sex, and arch classification was performed.
  
  
  RESULTS
  In total, 880 implants were virtually planned. Based on alveolar ridge height, four arch patterns were identified (C1 to C4), providing a basis for prosthodontic planning with either removable or fixed implant-supported restorations. The frequencies of each category were as follows: C3 (n = 62, 62%), C4 (n = 16, 16%), C2 (n = 12, 12%), and C1 (n = 10, 10%) for the maxilla and C3 (n = 36, 36%), C4 (n = 31, 31%), C1 (n = 24, 24%), and C2 (n = 9, 9%) for the mandible.
  
  
  CONCLUSIONS
  The proposed classification of the edentulous arch represents a useful tool for communication between clinicians when planning implant-supported rehabilitations.
authors.forename: Dimitrios E V
authors.initials: DE
authors.lastname: Papadimitriou
authors.forename: Samira
authors.initials: S
authors.lastname: Salari
authors.forename: Camille
authors.initials: C
authors.lastname: Gannam
authors.forename: German O
authors.initials: GO
authors.lastname: Gallucci
authors.forename: Bernard
authors.initials: B
authors.lastname: Friedland
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000539:Alveolar Process / Q000000981:diagnostic imaging; D000540:Alveolar Ridge Augmentation / Q000145:classification; D054893:Cone-Beam Computed Tomography / Q000379:methods; D015921:Dental Implants / Q000145:classification*; D019094:Dental Prosthesis, Implant-Supported / Q000145:classification*; D003779:Denture Design; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D007575:Jaw, Edentulous / Q000145:classification* / Q000000981:diagnostic imaging / Q000534:rehabilitation; D008297:Male; D008334:Mandible / Q000000981:diagnostic imaging; D008437:Maxilla / Q000000981:diagnostic imaging; D008875:Middle Aged; D010347:Patient Care Planning; D009626:Terminology as Topic; D013813:Therapy, Computer-Assisted; D014584:User-Computer Interface
chemical_list: D015921:Dental Implants