The Effect of Internal Versus External Abutment Connection Modes on Crestal Bone Changes Around Dental Implants: A Radiographic Analysis

Koo, Ki‐Tae; Lee, Eun Jeong; Kim, Jae Yoon; Seol, Yang‐Jo; Han, Jung Suk; Kim, Tae Il; Lee, Yong-Moo; Ku, Young; Wikesjö, Ulf M.E.; Rhyu, In‐Chul

doi:10.1902/jop.2011.110456

Cited by 64 publications

(114 citation statements)

References 20 publications

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“…In contrast, Koo et al 10 evaluated the linear bone change, dimensional bone change and the angle between the implant and the adjacent bone through radiographs and found significantly higher bone loss in implants with external connections over those with internal connections. Galindo-Moreno et al 21 also found significantly higher marginal bone loss in implants with external connection (0.714 mm/year) as compared to implants with internal connection (0.516 mm/ year) installed in the mandible after 6 and 18 months.…”

Section: Perimplant Marginal Bone Levelsmentioning

confidence: 96%

“…In this respect, many studies have evaluated different types of implant/abutment connections and their effect on the perimplant tissues [9][10] . The main advantages of the conventional external hexagon connection are easy installation of the prosthesis, avoidance of anti-rotational movements and compatibility among different implant systems.…”

Section: Original | Originalmentioning

confidence: 99%

“…The internal connections, especially the Morse cone, have shown better performance over the external connections in some experimental studies 1,3,10,[17][18] . Goiato et al 3 , showed better distribution of loads on implants with Morse cone connections when compared to external hexagon connections.…”

Section: Perimplant Marginal Bone Levelsmentioning

confidence: 99%

“…Maintenance of perimplant bone crest height is very important for the success of dental implants [9][10] . For Albrektsson et al 20 , a bone loss of up to 1.5 mm in the first year followed by 0.2 mm every year is acceptable for a successful implant.…”

Section: Perimplant Marginal Bone Levelsmentioning

confidence: 99%

See 3 more Smart Citations

Immediate loading over lower prosthesis in edentulous mandibles: comparison between two types of prosthetic connection

Oliveira

Leite

et al. 2017

RGO, Rev. Gaúch. Odontol.

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Section: Perimplant Marginal Bone Levelsmentioning

confidence: 96%

Section: Original | Originalmentioning

confidence: 99%

Section: Perimplant Marginal Bone Levelsmentioning

confidence: 99%

Section: Perimplant Marginal Bone Levelsmentioning

confidence: 99%

See 2 more Smart Citations

Immediate loading over lower prosthesis in edentulous mandibles: comparison between two types of prosthetic connection

Oliveira

Leite

et al. 2017

RGO, Rev. Gaúch. Odontol.

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show abstract

“…Furthermore, those studies do not standardize the implant-supported prosthesis design and the protocol of immediate loading or conventional loading (12)(13)(14).…”

Section: Introductionmentioning

confidence: 99%

Peri-Implant Bone Loss of External Hexagon and Morse Taper in Patients Wearing Immediately Loaded Overdentures

et al. 2017

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The aim of this study was to evaluate the peri-implant bone loss of External Hexagon (EH) and Morse Taper (MT) implants in patients wearing immediately loaded mandibular overdentures during a 1-year follow-up. This is a non-randomized controlled clinical trial including 18 MT and 22 EH implants. Periapical radiographs were taken after overdentures insertion and following 1 year. The peri-implant bone loss was assessed through digitalization and analysis of the radiographs in the software Corel DRAW X7. For this, measurement from implant platform to residual ridge at mesial and distal surfaces of each implant was conducted. The results showed high success rate in the groups EH (100%) and MT (94.4%). For peri-implant bone levels, it was found significant difference between the groups (p=0.032) and greater bone loss was observed in the group EH. In general, bone loss was 0.85mm (±0.82) for EH and 0.10mm (±1.0) for MT. It was concluded that greater bone loss occurred in the group EH in comparison to the group MT after a 1-year follow-up. P e r i -I m p l a n t B o n e L o s s o f E x t e r n a l H e x a g o n a n d M o r s e T a p e r i n P a t i e n t s W e a r i n g Immediately Loaded Overdentures

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The effect of implant‐abutment connections on peri‐implant bone levels around single implants in the aesthetic zone: A systematic review and a meta‐analysis

Meijndert

Raghoebar

Vissink

et al. 2021

Clinical & Exp Dental Res

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Objective To systematically review literature about the effect of different implant‐abutment interface designs on peri‐implant bone level changes, implant loss and mid‐buccal mucosa changes around single implants in the anterior maxilla. Reviewing three connection configurations: Platform switched conical (PS‐conical); Platform switched parallel (PS‐parallel); Platform matched parallel (PM‐parallel). Methods A detailed search was carried out in Pubmed, EMBASE, Cochrane, Scopus, Open Gray and African journals Online (until December 1, 2020) and was restricted to clinical prospective studies of at least 1 year and with at least 10 human participants. A meta regression analysis was carried out primarily on the pooled peri‐implant bone level changes followed by implant loss and mid‐buccal mucosa level change. Risk of bias was assessed with RoB 2.0 and ROBINS‐I. The manuscript complied with the PRISMA guidelines and was registered in the PROSPERO database (ID: 225092). Results A total of 5513 hits gave 44 eligible articles for the analyses. Bone level change did not differ significantly between the two platform switched connections; their bone loss scores were significantly lower than PM‐connection. The PS‐conical connections have significantly lower implant losses than the PM connection. Mid‐buccal mucosa level change was comparable between the three connection configurations. Moderate to high risk of bias was detected in the included studies. Conclusions The performance of PS‐conical and PS‐parallel connection configurations both favored bone loss scores compared to the PM‐parallel connection configuration. All three demonstrated mid‐buccal mucosa changes that were small and did not differ significantly amongst the groups.

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The Effect of Internal Versus External Abutment Connection Modes on Crestal Bone Changes Around Dental Implants: A Radiographic Analysis

Abstract: Within the limitations of this study, the implant-abutment connection technology appears to have a significant impact on peri-implant CBLs, with the external connection paralleled by a significant reduction of CBLs.

Cited by 64 publications

References 20 publications

Immediate loading over lower prosthesis in edentulous mandibles: comparison between two types of prosthetic connection

Immediate loading over lower prosthesis in edentulous mandibles: comparison between two types of prosthetic connection

Peri-Implant Bone Loss of External Hexagon and Morse Taper in Patients Wearing Immediately Loaded Overdentures

The effect of implant‐abutment connections on peri‐implant bone levels around single implants in the aesthetic zone: A systematic review and a meta‐analysis

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