ArticleOdontology2026
Effect of radiotherapy on the biomechanical preparation of different instrumentation kinematics.
Article in Odontology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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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.
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.
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Who cites it
1 citing paper in PubMed.
- Damage of irradiated teeth by ultrasonic scaling: an in vitro study.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
To evaluate the effect of biomechanical preparation on irradiated root dentin after the use of different endodontic instrumentation techniques. Sixty mandibular canines were randomly assigned to two groups: non-irradiated (30 canines) and irradiated (30 canines subjected to 30 cycles of 2 Gy, totaling 60 Gy). After radiotherapy, the samples were scanned using micro-CT to assess the 3D morphology of the root canal and to calculate the length, thickness, volume, surface area and transport of the canal. The groups were redistributed into 3 subgroups (n = 10) according to the instrumentation protocol: GI-manual M-easy Ni-Ti file up to #50.05; GII-rotary instrument ProTaper Next up to #50/.06; GIII-reciprocating instrument Reciproc #R50. After instrumentation, the specimens were scanned again in micro-CT following the same parameters as the initial acquisition. Statistical analysis was performed using two-factor analysis of variance (ANOVA) test with Tukey's post-test considering the variables "instrumentation protocol" and "radiotherapy". The three-factor ANOVA test with Tukey's post-test was carried out to compare the influence of radiotherapy, instrumentation and root thirds (cervical, middle and apical) on root canal transportation data. Irradiated teeth showed a greater increase in surface area and percentage of walls touched, while for root canal transport and volume, differences were observed only in relation to the type of preparation, in ascending order for the manual, rotary and reciprocating systems. Descriptive analysis showed that altered thickness in the middle-apical thirds occurred mainly in teeth irradiated with rotary and reciprocating instrumentation protocols. Irradiation of teeth can affect biomechanical preparation parameters of different instrument kinematics used to prepare canine root canals.
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Registered trials
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