Care and aftercare related to implant-retained dental crowns in the maxillary aesthetic region: a 5-year prospective randomized clinical trial.
OBJECTIVE
To prospectively assess surgical and prosthetic care and aftercare related to the placement of implant-retained dental crowns after local bone augmentation in patients missing one tooth in the maxillary aesthetic region.


METHODS
Ninety-three patients were randomly allocated to one of three local augmentation groups: (1) chin bone; (2) chin bone covered by a Bio-Gide® membrane (Geistlich, Wolhusen, Switzerland); and (3) Bio-Oss® covered by a Bio-Gide® membrane. After local augmentation, implant placement (ITI) and fabrication of an implant-retained dental crown (cemented metal-ceramic dental crown) was performed. Prosthetic and surgical care and aftercare was scored from the first visit until 5 years after the augmentation of the implant region.


RESULTS
The need for care and aftercare was comparable between the local augmentation groups. Three implants were lost (5-year implant survival rate: 96.7%). Surgical aftercare was needed in 9% of patients and consisted of care related to peri-implant tissue problems. Prosthetic aftercare was needed more often: all patients needed periodic routine inspections; 63% needed supplemental oral hygiene support; and 16% needed additional prosthetic care, mainly consisting of fabricating new crowns (12%).


CONCLUSIONS
Placing an implant in the maxillary esthetic region after local bone augmentation is a safe and reliable treatment option not needing much specific aftercare other than periodic preventive routine inspections, routine oral hygiene care, and fabrication of a new crown in one out of every eight to nine patients in 5 years. The method used for augmentation was irrespective of the patients' need for aftercare.
Visser
Anita
A
Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthodontics, University Medical Center Groningen, Groningen, the Netherlands. a.visser@kchir.umcg.nl
Raghoebar
Gerry M
GM
Meijer
Henny J A
HJ
Meijndert
Leo
L
Vissink
Arjan
A
D000293:Adolescent; D000328:Adult; D000359:Aftercare; D000540:Alveolar Ridge Augmentation / Q000379:methods; D001857:Bone Matrix / Q000637:transplantation; D018786:Bone Substitutes / Q000627:therapeutic use; D016025:Bone Transplantation / Q000379:methods; D002484:Cementation; D003094:Collagen; D003442:Crowns; D003729:Dental Care; D019250:Dental Implants, Single-Tooth; D017268:Dental Prosthesis Retention; D019094:Dental Prosthesis, Implant-Supported; D019232:Dental Restoration Failure; D004955:Esthetics, Dental; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008437:Maxilla / Q000601:surgery*; D008567:Membranes, Artificial; D016876:Metal Ceramic Alloys; D008875:Middle Aged; D008903:Minerals / Q000627:therapeutic use; D020380:Needs Assessment; D011446:Prospective Studies; D016019:Survival Analysis; D055815:Young Adult
C106416:Bio-Gide; C077540:Bio-Oss; D018786:Bone Substitutes; D008567:Membranes, Artificial; D016876:Metal Ceramic Alloys; D008903:Minerals; D003094:Collagen