Evidence map›Paper›PMID 34797431›Full record

Trial reportClinical oral investigations2022

Accuracy and primary stability of tapered or straight implants placed into fresh extraction socket using dynamic navigation: a randomized controlled clinical trial.

Shi-Min Wei, Jun-Yu Shi, Shi-Chong Qiao, Xiao Zhang, Hong-Chang Lai, Xiao-Meng Zhang

Abstract readRandomized Controlled 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 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
5.4field-weighted citation impact, top 3% 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Review
  6. Article
  7. Beyond Accuracy: Clinical Outcomes of Computer Assisted Implant Surgery.Clinical and experimental dental research · 2025
    Review
  8. Article
  9. Article
  10. [Accuracy of dynamic navigation system for immediate dental implant placement].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2025
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. 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 at 1 institution in 1 country.

Shi-Min Wei *Department of Oral and Maxillo-Facial Implantology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
Jun-Yu Shi *Department of Oral and Maxillo-Facial Implantology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
Shi-Chong QiaoDepartment of Oral and Maxillo-Facial Implantology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
Xiao ZhangDepartment of Oral and Maxillo-Facial Implantology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China.
Hong-Chang LaiDepartment of Oral and Maxillo-Facial Implantology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China. lhc9@hotmail.com.
Xiao-Meng ZhangDepartment of Oral and Maxillo-Facial Implantology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China. zhangxiaomengwowo@126.com.ORCID http://orcid.org/0000-0003-2504-8599
Shanghai Jiao Tong University · CN

Funding

Clinical Research Program of Ninth People's Hospital affiliated Shanghai Jiao Tong University School of Medicine JYLJ201909Shanghai Clinical Research Center for Oral Diseases 19411950100
6 · The paper itself

Abstract

objectivesTo compare the accuracy and primary stability of tapered and straight implants undergoing immediate implant placement with dynamic navigation. MATERIALS AND

methodsPatients with compromised anterior teeth in maxilla were recruited and allocated randomly into (1) tapered implant group (TI group) and (2) straight implant group (SI group). Implants were inserted into fresh sockets with dynamic navigation. Three-dimensional platform deviation, apex deviation, angular deviation, insertion torque value (ITV) and implant stability quotient (ISQ) were recorded.

resultsTwenty patients with 20 implants were included. The overall platform, apex, and angular deviation were 0.87 ± 0.35 mm, 0.81 ± 0.34 mm, and 2.40 ± 1.31°, respectively. The accuracy was 0.86 ± 0.26 mm, 0.76 ± 0.33 mm, and 2.49 ± 1.54° for TI, and 0.89 ± 0.44 mm, 0.88 ± 0.36 mm, and 2.31 ± 1.01° for SI, with no significant difference (p = 0.85, 0.45, 0.76). Sagittal root position classification (SRP) class I may obtain greater error in numerical values in straight implants (0.97 ± 0.47 mm vs. 0.6 ± 0.16 mm, 0.92 ± 0.36 mm vs. 0.73 ± 0.36 mm, 2.48 ± 1.19° vs. 1.71 ± 0.14°). The overall ISQ was 60.74. ISQ was 60.48 for TI and 60.96 for SI, with no significant difference. Acceptable ITV (> 15 Ncm) was achieved in most of the included patients (SI 7/10, TI 9/10).

conclusionsHigh accuracy and primary stability of immediate implant placement could be achieved both in tapered and straight implants with dynamic navigation systems. CLINICAL RELEVANCE: Tapered and straight implants did not reach a consensus on which was better in immediate implant regarding to accuracy and primary stability. Our study demonstrated implant macrodesign did not affect accuracy and primary stability in immediate implant using dynamic navigation.

Indexed as

Dental Implantation, EndosseousDental ImplantsHumansMaxillaTooth ExtractionTooth SocketTorqueDental ImplantsDental implantsDynamic navigationImmediate implant placementStraight implantTapered implant

Identifiers

PMID34797431
OpenAlexW3213462580

What OpenQuestion holds

Textmetadata
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.