Evidence analysis shows that the present knowledge about biologic width around implants is mainly derived from animal studies and that clinical controlled human studies are insufficient
PURPOSE The concept of biologic width forms a basis for successful peri-implant soft tissue integration around titanium implants .
Therefore , the objectives of this review are to determine and critically evaluate the present knowledge about biologic width around implants and to establish future research trends .
Do healing abutments influence the outcome of implant treatment? A three-year multicenter study.
STATEMENT OF THE PROBLEM It is not known if healing abutments replaced subsequently with permanent abutments adversely affect the soft tissues and marginal bone levels around dental implants . PURPOSE This study evaluated the mucosal condition and marginal bone levels 3 years after placement of healing abutments in patients provided with fixed prostheses supported by Brånemark implants .  MATERIAL AND METHODS Data were analyzed retrospectively from 117 patients treated at five centers in which 318 healing abutments were placed on maxillary and 112 on m and ibular implants .  A prospect i ve 3-year appraisal with a specific protocol assessed the response of mucosal cuffs and marginal bone levels surrounding surviving implants . RESULTS Exchange of abutments did not affect expected survival rates of implants  ( 94 % maxilla , 99 % m and ible ) or produce mean levels of marginal bone loss greater than anticipated for the system . Mean marginal bone levels correlated significantly with the jaw . Most patients achieved good oral hygiene and favorable peri-implant soft tissue health . CONCLUSION No evidence was found to suggest abutment exchange adversely affects outcome of implant treatment
Evidence analysis shows that the present knowledge about biologic width around implants is mainly derived from animal studies and that clinical controlled human studies are insufficient
PURPOSE The concept of biologic width forms a basis for successful peri-implant soft tissue integration around titanium implants .
Therefore , the objectives of this review are to determine and critically evaluate the present knowledge about biologic width around implants and to establish future research trends .