Evidence map›Paper›PMID 35129663›Full record

Trial reportClinical oral investigations2022

Occlusal change in posterior implant-supported single crowns and its association with peri-implant bone level: a 5-year prospective study.

Qian Ding, Qiang Luo, Yajing Tian, Lei Zhang, Qiufei Xie, Yongsheng Zhou

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Clinical oral investigations, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. 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

6 authors.

Qian DingDepartment of Prosthodontics, Peking University School and Hospital of Stomatology, Zhong-Guan-Cun, Haidian District, 22 South Street, Beijing, 100081, China.
Qiang LuoInstitute of Stomatology, Chinese PLA General Hospital, Beijing, China.
Yajing TianSchool of Business, Renmin University of China, Beijing, China.
Lei ZhangDepartment of Prosthodontics, Peking University School and Hospital of Stomatology, Zhong-Guan-Cun, Haidian District, 22 South Street, Beijing, 100081, China. drzhanglei@yeah.net.ORCID http://orcid.org/0000-0001-5447-981X
Qiufei XieDepartment of Prosthodontics, Peking University School and Hospital of Stomatology, Zhong-Guan-Cun, Haidian District, 22 South Street, Beijing, 100081, China.
Yongsheng ZhouDepartment of Prosthodontics, Peking University School and Hospital of Stomatology, Zhong-Guan-Cun, Haidian District, 22 South Street, Beijing, 100081, China.

Funding

Capital Health Research and Development of Special 2020-2-4104GuangDong Basic and Applied Basic Research Foundation 2019A1515110889Natural Science Foundation of Beijing Municipality 7192233
6 · The paper itself

Abstract

objectivesThis study aims to analyze the 5-year occlusal change in posterior implant-supported single crowns and the association between the relative occlusal force (ROF) and peri-implant bone level. MATERIALS AND

methodsPartially edentulous patients who had received implant-supported single crowns in the posterior region were included. Occlusal examinations with a computerized occlusion analysis system were conducted at 0.5, 3, 6, 12, 24, 36, 48, and 60 months after delivery of the implant-supported single crown. The ROFs of implant-supported single crowns, mesial adjacent teeth, and control natural teeth were recorded. Intraoral periapical radiographs were taken at each follow-up time to evaluate marginal bone level (MBL). Ordinary least square regression was used to analyze the association between ROF and MBL.

resultsThirty-seven posterior implant-supported single crowns in 33 participants (23.9 to 70.0 years) were followed up for 0.5 to 60 months [(42.4 ± 26.0) months]. The ROF of implant-supported single crowns increased from 2 weeks to 3 months (P < 0.01) and increased continuously between all two sequential time points from 6 to 36 months, with significant differences (P < 0.05). Then ROFs of implant-supported single crowns were significantly higher than those of control teeth at 48 and 60 months (P < 0.05). Regression analysis showed that ROF was significantly associated with MBL with a coefficient of 0.008 (P < 0.05).

conclusionThe ROFs of posterior implant-supported single crown have significant change during 5 years' follow-up. The association between ROF and MBL has limited clinical significance.

trial registrationChinese Clinical Trial Registry: ChiCTR-ROC-17012240. CLINICAL RELEVANCE: The occlusion of implant-supported single crowns should be carefully monitored during follow-up examinations, and occlusal adjustment should be considered to prevent overloading.

Indexed as

Alveolar Bone LossDental ImplantsDental Implants, Single-ToothMouth, EdentulousCrownsDental Prosthesis DesignDental Prosthesis, Implant-SupportedFollow-Up StudiesHumansProspective StudiesDental ImplantsDental implantImplant-supported prosthesisMarginal bone levelOcclusal forceOcclusionSingle crown

Identifiers

PMID35129663

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Registered trials

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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.