Evidence map›Paper›PMID 41633589›Full record

ArticleBeijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences2026

[Impact of ultrasonic scaling on abutment screw torque in implant restorations].

Y Tang, X Zhao, X Yang, H Jia, Y Liu

Abstract readEnglish Abstract
PubMed Full text at PMC
In one paragraph

Article in Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

5 authors.

Y TangSecond Clinical Division, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.
X ZhaoSecond Clinical Division, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.
X YangSecond Clinical Division, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.
H JiaSecond Clinical Division, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.
Y LiuDepartment of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the effect of ultrasonic scaling on the torque of implant prosthetic abutment screws and to compare the differences in torque influence between ultrasonic tips of two different materials.

methodsIn this study, a total of 22 implants were selected, and two distinct primary torque values (PTV) 15 N·cm and 35 N·cm were applied to the temporary and definitive restorations mounted on each implant, respectively. Subsequently, ultrasonic scaling was performed for one minute using either a traditional metal scaling tip (metal tip) or a carbon fiber scaling tip (fiber tip), followed by measurement of the removal torque value (RTV). Paired

resultsThe RTVs in all the four groups were significantly lower than the corresponding PTVs after ultrasonic scaling (

conclusionUltrasonic scaling can lead to significant attenuation of torque in implant prosthetic abutment screws. Under a lower primary torque condition (15 N·cm), carbon fiber scaling tips significantly reduce torque attenuation compared with traditional metal scaling tips. However, under a higher primary torque condition (35 N·cm), no significant difference in the effect on screw torque was observed between the two tip types. These findings suggest that screw torque should be checked after clinical peri-implant maintenance to reduce the risk of screw loosening.

Indexed as

Dental AbutmentsDental ImplantsTorqueUltrasonicsUltrasonic TherapyHumansDental ImplantsRemoval torque valueScrew looseningTorque attenuationUltrasonic scaling

Identifiers

PMID41633589
PMCPMC12872351

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.