Evidence map›Paper›PMID 33378476›Full record

Trial reportThe Angle orthodontist2020

Effect of piezocision corticotomy on en-masse retraction.

Abdulkarim A Hatrom, Khalid H Zawawi, Reem M Al-Ali, Hanadi M Sabban, Talal M Zahid, Ghassan A Al-Turki, Ali H Hassan

2 registry-linked trialsAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Angle orthodontist, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 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.

NCT05655169 nacompletednot on this map

Effectiveness of Piezocision or the Combination of Piezocision and Low-level Laser Therapy on Orthodontic Tooth Movement During En-masse Retraction and the Associated Dentoalveolar Changes: A Three-arm Randomized Controlled Trial

TypeinterventionalSponsorDamascus UniversityRan2019 to 2021Enrolled63ConditionsAngle Class IIArmsPiezosurgery and GaALAs diode laser, Piezosurgery, Fixed orthodontic appliance
NCT07458139 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

Comparison of External Apical Root Resorption in Modified Corticotomy-Assisted and Conventionally Retracted Maxillary Canines Using Frictionless T-Loop Mechanics: A Randomized Controlled Clinical Trial

TypeinterventionalSponsorIslamabad Medical and Dental CollegeRan2026 to 2026Enrolled60ConditionsExternal Apical Root Resorption in Maxillary Canines During Orthodontic RetractionArmsModified Corticotomy assisted frictionless canine retraction, Conventional Frictionless Canine retraction
3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Effectiveness of piezoelectric-assisted orthodontic treatment : Systematic review and meta-analysis of randomized controlled trials.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2026
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  4. Acceleration of canine retraction with conventional versus modified piezocision techniques : A randomized controlled clinical trial.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2026
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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

7 authors.

Abdulkarim A Hatrom
Khalid H Zawawi
Reem M Al-Ali
Hanadi M Sabban
Talal M Zahid
Ghassan A Al-Turki
Ali H Hassan

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo compare the amount of en-masse retraction with or without piezocision corticotomy, to assess the type of tooth movement, to evaluate root integrity after retraction, and to record reported pain levels. MATERIALS AND

methodsThis randomized, controlled clinical trial included 26 orthodontic patients requiring premolar extraction. The patients were divided into two groups: (1) an extraction with piezocision corticotomy group (PCG) and (2) an extraction-only group, which served as the control group (CG). Cone-beam computed tomography images were acquired before and 4 months after the initiation of en-masse retraction utilizing miniscrews. The following variables were assessed: the amount of en-masse retraction, incisor inclination, incisor and canine root resorption, and patient-reported pain.

resultsTwelve and 11 participants completed the entire study in the PCG and CG, respectively. The amount of en-masse retraction was significantly greater in the PCG compared to the CG (mean = 4.8 ± 0.57 mm vs 2.4 ± 0.33 mm, respectively [P < .001]). There was also significantly less tipping and root resorption of incisors in the PCG (P < .05). The reported pain was significantly higher on the first day in the PCG compared to the CG (P < .001); however, it became similar between the groups after 24 hours.

conclusionsPiezocision corticotomy enhanced the amount of en-masse retraction two times more with less root resorption. However, future studies are required to assess the long-term effects of this technique.

Indexed as

Orthodontic Anchorage ProceduresRoot ResorptionBicuspidHumansIncisorTooth Movement TechniquesCorticotomyEn-masse retractionPiezocisionRoot resorption

Identifiers

PMID33378476
PMCPMC8032268

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.