An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT)
Abstract
1. Introduction
2. Materials and Methods
3. Results
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
- Sardarian, A.; Danaei, S.M.; Shahidi, S.; Boushehri, S.G.; Geramy, A. The Effect of Vertical Bracket Positioning on Torque and the Resultant Stress in the Periodontal Ligament--a Finite Element Study. Prog. Orthod. 2014, 15, 50. [Google Scholar] [CrossRef]
- Meling, T.R.; Odegaard, J. The Effect of Cross-Sectional Dimensional Variations of Square and Rectangular Chrome-Cobalt Archwires on Torsion. Angle Orthod. 1998, 68, 239–248. [Google Scholar] [CrossRef] [PubMed]
- Swartz, M.L. Ceramic Brackets. J. Clin. Orthod. JCO 1988, 22, 82–88. [Google Scholar] [PubMed]
- Gioka, C.; Eliades, T. Materials-Induced Variation in the Torque Expression of Preadjusted Appliances. Am. J. Orthod. Dentofac. Orthop. 2004, 125, 323–328. [Google Scholar] [CrossRef] [PubMed]
- O’Higgins, E.A.; Kirschen, R.H.; Lee, R.T. The Influence of Maxillary Incisor Inclination on Arch Length. Br. J. Orthod. 1999, 26, 97–102. [Google Scholar] [CrossRef]
- Siatkowski, R.E. Loss of Anterior Torque Control Due to Variations in Bracket Slot and Archwire Dimensions. J. Clin. Orthod. JCO 1999, 33, 508–510. [Google Scholar]
- Kusy, R.P.; Whitley, J.Q. Assessment of Second-Order Clearances between Orthodontic Archwires and Bracket Slots via the Critical Contact Angle for Binding. Angle Orthod. 1999, 69, 71–80. [Google Scholar] [CrossRef]
- Cash, A.C.; Good, S.A.; Curtis, R.V.; McDonald, F. An Evaluation of Slot Size in Orthodontic Brackets--Are Standards as Expected? Angle Orthod. 2004, 74, 450–453. [Google Scholar] [CrossRef] [PubMed]
- Albertini, P.; Mazzanti, V.; Mollica, F.; Lombardo, L.; Siciliani, G. Comparative Analysis of Passive Play and Torque Expression in Self-Ligating and Traditional Lingual Brackets. J. Orofac. Orthop. Fortschritte Kieferorthopadie Organ Off. J. Dtsch. Ges. Kieferorthopadie 2022, 83, 13–22. [Google Scholar] [CrossRef]
- Major, T.W.; Carey, J.P.; Nobes, D.S.; Major, P.W. Orthodontic Bracket Manufacturing Tolerances and Dimensional Differences between Select Self-Ligating Brackets. J. Dent. Biomech. 2010, 1, 781321. [Google Scholar] [CrossRef]
- Alqahtani, N.D. Assessment on the Precision of the Orthodontic Bracket Slot Dimensions Using Micro-Computed Tomography (Micro-CT). J. Contemp. Dent. Pract. 2021, 22, 27–33. [Google Scholar] [CrossRef] [PubMed]
- Feldkamp, L.A.; Davis, L.C.; Kress, J.W. Practical Cone-Beam Algorithm. J. Opt. Soc. Am. A 1984, 1, 612. [Google Scholar] [CrossRef]
- Brown, P.; Wagner, W.; Choi, H. Orthodontic Bracket Slot Dimensions as Measured from Entire Bracket Series. Angle Orthod. 2015, 85, 678–682. [Google Scholar] [CrossRef] [PubMed]
- Lefebvre, C.; Saadaoui, H.; Olive, J.; Renaudin, S.; Jordana, F. Variability of Slot Size in Orthodontic Brackets. Clin. Exp. Dent. Res. 2019, 5, 528–533. [Google Scholar] [CrossRef] [PubMed]
- Joch, A.; Pichelmayer, M.; Weiland, F. Bracket Slot and Archwire Dimensions: Manufacturing Precision and Third Order Clearance. J. Orthod. 2010, 37, 241–249. [Google Scholar] [CrossRef]
- Streva, A.M.; Cotrim-Ferreira, F.A.; Garib, D.G.; Carvalho, P.E.G. Are Torque Values of Preadjusted Brackets Precise? J. Appl. Oral. Sci. 2011, 19, 313–317. [Google Scholar] [CrossRef]
- Breckon, J. The 20 Principles of the Alexander Discipline (2008). Eur. J. Orthod. 2009, 31, 213. [Google Scholar] [CrossRef]
- Awasthi, E.; Sharma, N.; Strivastav, S.; Kamble, R. Evaluation and Comparison of Various Prescription Specifications and Slot Distortion of Pre-Adjusted Edgewise Brackets Manufactured by Different Companies Available in India. Int. J. Curr. Res. Rev. 2015, 7, 44–51. [Google Scholar]
- Divya, P.; Banswada, S.R.; Kukunuru, S.R.; Kavya, K.B.; Rathod, R.R.; Polavarapu, K.C. To Compare the Accuracy of 0.022 Inch Slot of Stainless Steel and Ceramic Orthodontic Brackets Marketed by Different Manufacturers. J. Pharm. Bioallied Sci. 2021, 13, S1037–S1041. [Google Scholar] [CrossRef]
- Lee, Y.; Lee, D.-Y.; Kim, Y.-J.R. Dimensional Accuracy of Ceramic Self-Ligating Brackets and Estimates of Theoretical Torsional Play. Angle Orthod. 2016, 86, 804–809. [Google Scholar] [CrossRef]
- Bernés Martínez, L.; Garcovich, D.; España Pamplona, P.; Adobes Martín, M.A.; Alvarado Lorenzo, A. Compliance with the ISO 27020:2019 Norm of a Sample of Currently Available Preadjusted Orthodontic Bracket Systems. Are the Actual Dimensions as Expected? Head Face Med. 2021, 17, 24. [Google Scholar] [CrossRef] [PubMed]
- Tepedino, M.; Paiella, G.; Iancu Potrubacz, M.; Monaco, A.; Gatto, R.; Chimenti, C. Dimensional Variability of Orthodontic Slots and Archwires: An Analysis of Torque Expression and Clinical Implications. Prog. Orthod. 2020, 21, 32. [Google Scholar] [CrossRef] [PubMed]
Bracket | Minimum | % Deviation from Expected (0.022″) | Maximum | % Deviation from Expected (0.022″) | Range | Mean Difference to Expected Value | p-Value | |
---|---|---|---|---|---|---|---|---|
American Orthodontics Radiance Plus® | External. | 23.07 | 4.90% | 23.62 | 7.40% | 0.55 | 1.363 | *** |
Internal | 20.75 | −5.7% | 21.86 | −0.6% | 1.11 | −0.565 | * | |
American Orthodontics 20/40® | External. | 23.62 | 7.40% | 24.49 | 11.30% | 0.87 | 2.043 | *** |
Internal | 23.11 | 5.10% | 23.39 | 6.30% | 0.28 | 1.223 | *** | |
DB Orthodontics Spa® | External. | 23.03 | 4.70% | 24.09 | 9.50% | 1.06 | 1.404 | ** |
Internal | 21.14 | −3.9% | 22.6 | 2.70% | 1.46 | −0.262 | 0.391 | |
Forestadent Glam® | External. | 23.54 | 7% | 24.09 | 9.50% | 0.55 | 1.699 | *** |
Internal | 20.2 | −8.2% | 21.97 | −0.1% | 1.77 | −0.894 | * | |
Ormco Symetri® | External. | 23.94 | 8.80% | 25.75 | 17.10% | 1.81 | 2.815 | ** |
Internal | 20.79 | −5.5% | 21.69 | −1.4% | 0.9 | −0.652 | * | |
OrthoCare Purity® | External. | 22.64 | 2.90% | 23.62 | 7.40% | 0.98 | 0.949 | ** |
Internal | 22.17 | 0.80% | 22.68 | 3.10% | 0.51 | 0.458 | * | |
TOC Ghost Advanced® | External. | 25.94 | 17.90% | 27.36 | 24.40% | 1.42 | 4.582 | *** |
Internal | 22.91 | 4.10% | 25.47 | 15.80% | 2.56 | 2.303 | ** | |
TOC Verve® | External. | 23.46 | 6.60% | 24.09 | 9.50% | 0.63 | 1.747 | *** |
Internal | 23.03 | 4.70% | 24.06 | 9.30% | 1.03 | 1.379 | ** | |
TP | External. | 23.62 | 7.40% | 24.49 | 11.30% | 0.87 | 2.003 | *** |
Orthodontics ClearVu® | Internal | 23.7 | 7.70% | 24.09 | 9.50% | 0.39 | 1.901 | *** |
TP | External. | 24.06 | 9.40% | 24.49 | 11.30% | 0.43 | 2.326 | *** |
Orthodontics InVu® | Internal | 23.62 | 7.40% | 24.57 | 11.70% | 0.95 | 2.169 | *** |
3M Clarity Advanced® | External. | 22.68 | 3.10% | 23.7 | 7.70% | 1.02 | 1.263 | ** |
Internal | 22.2 | 0.90% | 23.15 | 5.20% | 0.95 | 0.664 | * |
Bracket | External Height | % Deviation from Expected (0.022″) | Internal Height | % Deviation from Expected (0.022″) | Mean Difference of External/ Internal Height | p-Value | ||||
---|---|---|---|---|---|---|---|---|---|---|
M | SD | CV % | M | SD | CV% | |||||
American Orthodontics Radiance Plus® | 23.37 | 0.251 | 1.07% | 6.30% | 21.44 | 0.248 | 1.16% | −2.6% | 1.929 | ** |
American Orthodontics 20/40® | 24.05 | 0.312 | 1.30% | 9.30% | 23.23 | 0.124 | 0.53% | 5.60% | 0.819 | ** |
DB Orthodontics Spa® | 23.41 | 0.455 | 1.94% | 6.40% | 21.75 | 0.609 | 2.80% | −1.1% | 1.661 | *** |
Forestadent Glam® | 23.71 | 0.227 | 0.96% | 7.80% | 21.11 | 0.632 | 2.99% | −4.1% | 2.583 | *** |
Ormco Symetri® | 24.82 | 0.884 | 3.56% | 12.80% | 21.36 | 0.153 | 0.72% | −2.9% | 3.465 | *** |
OrthoCare Purity® | 22.96 | 0.438 | 1.91% | 4.40% | 22.47 | 0.269 | 1.20% | 2.10% | 0.488 | ** |
TOC Ghost Advanced® | 26.59 | 0.545 | 2.05% | 20.90% | 24.31 | 0.966 | 3.97% | 10.50% | 2.284 | ** |
TOC Verve® | 23.76 | 0.271 | 1.14% | 8% | 23.39 | 0.439 | 1.88% | 6.30% | 0.370 | 0.105 |
TP Orthodontics ClearVu® | 24.01 | 0.318 | 1.32% | 9.10% | 23.9 | 0.18 | 0.75% | 8.60% | 0.094 | 0.408 |
TP Orthodontics InVu® | 24.33 | 0.202 | 0.83% | 10.60% | 24.17 | 0.388 | 1.61% | 9.90% | 0.158 | 0.397 |
3M Clarity Advanced® | 23.27 | 0.410 | 1.76% | 5.80% | 22.67 | 0.347 | 1.53% | 3.10% | 0.598 | 0.086 |
Internal Measurement—Tukey’s HSDA | ||||||
---|---|---|---|---|---|---|
Group Number | n | Subset for Alpha = 0.05 | ||||
1 | 2 | 3 | 4 | 5 | ||
Forestadent Glam® | 5 | 0.0211 | ||||
Ormco Symetri® | 5 | 0.0213 | ||||
American Orthodontics Radiance Plus® | 5 | 0.0214 | ||||
DB Orthodontics Spa® | 5 | 0.0217 | 0.0217 | |||
Standard 22 | 5 | 0.022 | 0.022 | |||
OrthoCare Purity® | 5 | 0.0225 | 0.0225 | |||
3M Clarity Advanced® | 5 | 0.0227 | 0.0227 | |||
American Orthodontics 20/40 | 5 | 0.0232 | 0.0232 | |||
TOC Verve® | 5 | 0.0234 | 0.0234 | 0.0234 | ||
TP Orthodontics ClearVu® | 5 | 0.0239 | 0.0239 | |||
TP Orthodontics InVu® | 5 | 0.0242 | 0.0242 | |||
TOC Ghost Advanced® | 5 | 0.0243 | ||||
Sig. | 0.138 | 0.109 | 0.116 | 0.091 | 0.103 |
External Measurement—Tukey’s HSDA | |||||||
---|---|---|---|---|---|---|---|
Group Number | n | Subset for Alpha = 0.05 | |||||
1 | 2 | 3 | 4 | 5 | 6 | ||
Standard 22 | 5 | 0.022 | |||||
OrthoCare Purity® | 5 | 0.023 | |||||
3M Clarity Advanced® | 5 | 0.0233 | 0.0233 | ||||
American Orthodontics Radiance Plus® | 5 | 0.0234 | 0.0234 | ||||
DB Orthodontics Spa® | 5 | 0.0234 | 0.0234 | ||||
Forestadent Glam® | 5 | 0.0237 | 0.0237 | 0.0237 | |||
TOC Verve® | 5 | 0.0237 | 0.0237 | 0.0237 | |||
TP Orthodontics ClearVu® | 5 | 0.024 | 0.024 | 0.024 | |||
American Orthodontics 20/40 | 5 | 0.024 | 0.024 | 0.024 | |||
TP Orthodontics InVu® | 5 | 0.0243 | 0.0243 | ||||
Ormco Symetri® | 5 | 0.0248 | |||||
TOC Ghost Advanced® | 5 | 0.0266 | |||||
Sig. | 1 | 0.1301 | 0.1483 | 0.4235 | 0.1137 | 1 |
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Garrett, A.; Alghilan, M.A.; Ash, S.; Awawdeh, M.; Singh, P. An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT). Tomography 2023, 9, 1369-1380. https://doi.org/10.3390/tomography9040109
Garrett A, Alghilan MA, Ash S, Awawdeh M, Singh P. An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT). Tomography. 2023; 9(4):1369-1380. https://doi.org/10.3390/tomography9040109
Chicago/Turabian StyleGarrett, Antonio, Maryam A. Alghilan, Simon Ash, Mohammed Awawdeh, and Parmjit Singh. 2023. "An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT)" Tomography 9, no. 4: 1369-1380. https://doi.org/10.3390/tomography9040109
APA StyleGarrett, A., Alghilan, M. A., Ash, S., Awawdeh, M., & Singh, P. (2023). An Evaluation of the Accuracy and Precision of Ceramic Orthodontic Bracket Slot Dimensions Utilizing Micro-Computed Tomography (Micro-CT). Tomography, 9(4), 1369-1380. https://doi.org/10.3390/tomography9040109