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Randomized Controlled Trial
. 2025 Jan 1;95(1):3-11.
doi: 10.2319/030624-179.1.

Evaluation of the accuracy of digital indirect bonding vs. conventional systems: a randomized clinical trial

Eloisa Peixoto Soares Ueno, Teresa Cristina Alvez da Silva Gonzalez de Carvalho, Lylian Kazumi Kanashiro, Weber Ursi, Israel Chilvarquer, José Rino Neto, João Batista de Paiva
Randomized Controlled Trial

Evaluation of the accuracy of digital indirect bonding vs. conventional systems: a randomized clinical trial

Eloisa Peixoto Soares Ueno et al. Angle Orthod. .

Abstract

Objectives: To compare the accuracy and chair time of self-ligating brackets using direct bonding, traditional indirect bonding (IB), and computer-aided design/computer-aided manufacturing (CAD/CAM) IB techniques after orthodontic leveling and alignment.

Materials and methods: Forty-five patients were randomly assigned to three bonding groups (G1 [n = 15], G2 [n = 15], and G3 [n = 15]). Evaluation after the alignment and leveling phases used two parameters of the objective grading system of the American Board of Orthodontics for root parallelism and posterior marginal ridges, assessed using panoramic radiographies (PR I and PR II), a digital model, and a plaster model. Blinding was only applied for outcome assessment. No serious harm was observed except for gingivitis associated with plaque accumulation.

Results: Although G3 showed better numerical results, they were not statistically significant in the radiographic or model evaluations (P > .001). Mean chair time was significantly shorter in G3 (1.1 ± 11.8 min) vs. G1 (56.7 ± 7.3 min) and G2 (52.8 ± 8.3 min; P < .001).

Conclusions: The CAD/CAM IB system for self-ligating brackets was as effective as conventional methods, with a shorter chair time.

Keywords: CAD/CAM; Digital bonding; Digital flow; Digital trays; Indirect bonding.

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Conflict of interest statement

No funding or conflict of interest was declared.

Figures

Figure 1.
Figure 1.
Computer-aided design/computer-aided manufacturing (CAD/CAM) digital tray for indirect bonding (IB).
Figure 2.
Figure 2.
Computer-aided design/computer-aided manufacturing (CAD/CAM) transfer trays for indirect bonding (IB).
Figure 3.
Figure 3.
Panoramic radiography I (PR I).
Figure 4.
Figure 4.
Panoramic radiography II (PR II).
Figure 5.
Figure 5.
Digital model (DM).
Figure 6.
Figure 6.
Plaster model (PM).
Figure 7.
Figure 7.
CONSORT flow chart.
See this image and copyright information in PMC

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