Evidence map›Paper›PMID 35791805›Full record

ArticleClinical implant dentistry and related research2022

Abutment mechanical complications of a Morse taper connection implant system: A 1- to 9-year retrospective study.

Fan Yang, Yan Ruan, Yunqing Liu, Jianping Chen, Yunfang Chen, Wentao Zhang, Yude Ding, Linhong Wang

Open access · hybridAbstract read
In one paragraph

Article in Clinical implant dentistry and related research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
4.7field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 26 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Fan YangCenter for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China.ORCID https://orcid.org/0000-0002-1308-4827
Yan RuanDepartment of Stomatology, Bengbu Medical College, Bengbu, Anhui, China.
Yunqing LiuDepartment of Restorative Dentistry, Division of Oral Health Science, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan.
Jianping ChenCenter for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China.
Yunfang ChenCenter for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China.
Wentao ZhangCenter for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China.
Yude DingCenter for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China.
Linhong WangCenter for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China.ORCID https://orcid.org/0000-0001-9215-3845
Zhejiang Provincial People's Hospital · CNHokkaido University · JPBengbu Medical College · CN

Funding

Zhejiang Provincial Natural Science Foundation LGF20H140010
6 · The paper itself

Abstract

backgroundThe fracture of a Morse tapered abutment connection in an osseointegrated implant is one of the most serious mechanical complications, and it is extremely hard to deal with this complication in clinical practice. PURPOSE: The aim of this study was to explore the cumulative mechanical complications focus on abutment of a platform switching Morse taper connection implant system after loading, and to perform a retrospective, approximately 1- to 9-year follow-up study to identify the predisposing factors. MATERIALS AND

methodsA total of 495 patients with 945 fitted implants were enrolled in this study with a follow-up from January 2012 to January 2020. The data of mechanical complications of the abutment, including abutment fracture (AF) and abutment screw loosening (ASL), and possible causative factors were extracted and evaluated statistically.

resultsA total of 25 out of 945 (2.65%) cumulative abutment mechanical complications occurred. AF was the most common complication (n = 13, 1.38%), followed by ASL (n = 12, 1.27%). For AF, gender, type of prosthesis, abutment design, and implant diameter were identified as the causative factors. AF was mostly observed in the single crown of males in molar areas, while ASL was more likely to occur on an angled abutment than on a non-angled abutment. Moreover, the abutment with the positioning index (/X) had a higher incidence of fracture than the abutment without the positioning index (C/).

conclusionsThis study shows that the Morse taper connection is a safe abutment connection. AF occurs more frequently within single crowns in molar area of males, especially with the positioning index (/X), while ASL is more likely to occur in an angled abutment.

Indexed as

Dental ImplantsCrownsDental AbutmentsDental Implant-Abutment DesignFollow-Up StudiesHumansMaleRetrospective StudiesDental Implantsdental abutmentdental implantsmechanical complicationMorse taper connectionpositioning index

Identifiers

PMID35791805
PMCPMC9796380
OpenAlexW4284681103

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.