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document
Immediately restored , single-tapered implants in the anterior maxilla : prosthodontic and aesthetic outcomes after 1 year . BACKGROUND Conventional implant protocols advocate a two-stage technique with a load-free , submerged healing period . Recent studies suggest that immediate restoration of single implants may be a viable treatment option . PURPOSE The purpose of this study was to evaluate prosthodontic and aesthetic peri-implant mucosal outcomes of immediately restored , Southern single-tapered implants in the anterior maxilla after 1 year . MATERIALS AND METHODS Participants ( mean age : 43.25 years ; range : 23-71 years ) satisfying specified inclusion criteria were randomly allocated to conventional two-stage restoration ( control group ; n=14 ) and immediate restoration groups ( test group ; n =14 ) in a randomized controlled clinical trial . Tapered , roughened-surface Southern implants were placed using a standardized technique , and implant level bone impressions were made . Provisional screw-retained crowns , out of occlusion , were placed at second-stage surgery after 26 weeks for the conventional restoration group , and within 4 hours of implant placement for the immediate restoration group . Both groups had definitive screw-retained metal-ceramic crowns placed in occlusion 8 weeks later . Peri-implant mucosal response and papilla index were recorded 4 weeks after definitive crown placement to allow for mucosal maturation and at 1 year . Prosthodontic and aesthetic outcomes were assessed using established criteria . RESULTS There were no significant differences within , or between , the control and test groups for age , gender , bone quality or quantity , implant stability measurements at surgery , or implant length . There were no significant differences in the implant success rate as determined by radiographic bone loss and stability tests after 1 year . There were no significant differences in prosthodontic maintenance , peri-implant mucosal response , and papilla index between the two groups over 1 year . CONCLUSIONS Tapered , roughened-surface implants immediately restored with single provisional crowns at surgery and definitive crowns 8 weeks later were as prosthodontically and aesthetically successful as conventionally restored two-stage implants during the first year of service . Restoring single implants immediately with screw-retained crowns is an efficient procedure , but the short-term outcome is by no means superior to a conventional two-stage approach .
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Intervention_Physical
implants
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Intervention_Physical
implants
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Intervention_Other
two-stage restoration
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Intervention_Other
Restoring
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Outcome_Physical
prosthodontic and aesthetic peri-implant mucosal
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Outcome_Physical
Peri-implant mucosal response and papilla index
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Outcome_Physical
Prosthodontic and aesthetic
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Outcome_Other
bone quality or quantity , implant stability measurements at surgery
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Outcome_Other
implant length
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Outcome_Other
implant success rate
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Outcome_Physical
bone loss
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Outcome_Other
prosthodontic maintenance
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Outcome_Physical
, peri-implant mucosal response , and papilla index
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Participant_Condition
implants in the anterior maxilla
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Participant_Condition
prosthodontic
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Participant_Condition
aesthetic peri-implant
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Participant_Condition
Southern single-tapered implants in the anterior maxilla
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Participant_Age
43.25
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Participant_Age
23-71