Assessing Enamel Thickness to Estimate Interproximal Reduction: A CBCT‐Based Study
ABSTRACT Objectives The aims of this study were to (1) estimate the mesial and distal proximal enamel thickness available (PETa), (2) estimate the proximal enamel thickness remaining (PETr) on the basis of planned IPR, and (3) assess PETr‐associated risks with varying IPR amounts. Materials and Meth...
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Wiley
2025-02-01
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| Series: | Clinical and Experimental Dental Research |
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| Online Access: | https://doi.org/10.1002/cre2.70083 |
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| author | Enrique González‐García Nasib Balut‐Chahin Claudia Daniela Rojo‐Arce María Eugenia Jiménez Corona Luis Pablo Cruz‐Hervert Jean Marc Retrouvey |
| author_facet | Enrique González‐García Nasib Balut‐Chahin Claudia Daniela Rojo‐Arce María Eugenia Jiménez Corona Luis Pablo Cruz‐Hervert Jean Marc Retrouvey |
| author_sort | Enrique González‐García |
| collection | DOAJ |
| description | ABSTRACT Objectives The aims of this study were to (1) estimate the mesial and distal proximal enamel thickness available (PETa), (2) estimate the proximal enamel thickness remaining (PETr) on the basis of planned IPR, and (3) assess PETr‐associated risks with varying IPR amounts. Materials and Methods A cross‐sectional study was conducted using CBCT scans. PETa was estimated using on‐demand software. Mesial and distal PET were measured at the middle third of the crown. The means and 95% confidence intervals (CIs) of the PETa and PETr data are reported. Differences between the mesial and distal PETa values were compared. Results A total of 1615 teeth were analyzed via CBCT. The mean PETa values ranged from 0.96 to 1.29 mm (mesial) and from 0.98 to 1.25 mm (distal). Differences between mesial and distal PETa were statistically significant, averaging 0.10 mm proximally (p < 0.050). In particular, these differences were observed in cuspids, including tooth 13 (1.18 ± 0.24 vs. 1.25 ± 0.28; p = 0.021), tooth 23 (1.25 ± 0.26 vs. 1.15 ± 0.28; p < 0.001), tooth 33 (1.22 ± 0.26 vs. 1.10 ± 0.23; p < 0.001), and tooth 43 (1.29 ± 0.24 vs. 1.13 ± 0.20; p < 0.001). The mean PETr values for single‐site IPRs < 0.4 mm were 0.58 mm (mesial) and 0.57 mm (distal). Exceeding a single‐site IPR of 0.20 mm significantly increased the proportion of interproximal sites classified as moderate or high risk, particularly in teeth with thinner enamel (< 0.7 mm). Conclusions PETa and PETr are critical for determining safe and individualized IPR. CBCT‐based PETa evaluations are strongly recommended when single‐site IPRs exceeding 0.20 mm are planned to increase precision and reduce the risk of excessive enamel reduction. |
| format | Article |
| id | doaj-art-404bb0efd7f14f609e6ef02dc6fba30d |
| institution | Kabale University |
| issn | 2057-4347 |
| language | English |
| publishDate | 2025-02-01 |
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| series | Clinical and Experimental Dental Research |
| spelling | doaj-art-404bb0efd7f14f609e6ef02dc6fba30d2025-08-20T03:55:08ZengWileyClinical and Experimental Dental Research2057-43472025-02-01111n/an/a10.1002/cre2.70083Assessing Enamel Thickness to Estimate Interproximal Reduction: A CBCT‐Based StudyEnrique González‐García0Nasib Balut‐Chahin1Claudia Daniela Rojo‐Arce2María Eugenia Jiménez Corona3Luis Pablo Cruz‐Hervert4Jean Marc Retrouvey5Department of Orthodontics Technological University of Mexico Mexico City MexicoDepartment of Orthodontics University of Valle Cali ColombiaPosgraduate and Research Studies Division, Dentistry Faculty National Autonomous University of Mexico México City MexicoPostgraduate and Research Studies Division, Dentistry Faculty National Autonomous University of Mexico Mexico City MexicoPostgraduate and Research Studies Division, Dentistry Faculty National Autonomous University of Mexico Mexico City MexicoBaylor College of Medicine Houston Texas USAABSTRACT Objectives The aims of this study were to (1) estimate the mesial and distal proximal enamel thickness available (PETa), (2) estimate the proximal enamel thickness remaining (PETr) on the basis of planned IPR, and (3) assess PETr‐associated risks with varying IPR amounts. Materials and Methods A cross‐sectional study was conducted using CBCT scans. PETa was estimated using on‐demand software. Mesial and distal PET were measured at the middle third of the crown. The means and 95% confidence intervals (CIs) of the PETa and PETr data are reported. Differences between the mesial and distal PETa values were compared. Results A total of 1615 teeth were analyzed via CBCT. The mean PETa values ranged from 0.96 to 1.29 mm (mesial) and from 0.98 to 1.25 mm (distal). Differences between mesial and distal PETa were statistically significant, averaging 0.10 mm proximally (p < 0.050). In particular, these differences were observed in cuspids, including tooth 13 (1.18 ± 0.24 vs. 1.25 ± 0.28; p = 0.021), tooth 23 (1.25 ± 0.26 vs. 1.15 ± 0.28; p < 0.001), tooth 33 (1.22 ± 0.26 vs. 1.10 ± 0.23; p < 0.001), and tooth 43 (1.29 ± 0.24 vs. 1.13 ± 0.20; p < 0.001). The mean PETr values for single‐site IPRs < 0.4 mm were 0.58 mm (mesial) and 0.57 mm (distal). Exceeding a single‐site IPR of 0.20 mm significantly increased the proportion of interproximal sites classified as moderate or high risk, particularly in teeth with thinner enamel (< 0.7 mm). Conclusions PETa and PETr are critical for determining safe and individualized IPR. CBCT‐based PETa evaluations are strongly recommended when single‐site IPRs exceeding 0.20 mm are planned to increase precision and reduce the risk of excessive enamel reduction.https://doi.org/10.1002/cre2.70083CBCTenamel availabilityenamel thicknessinterproximal reductionIPRPETa |
| spellingShingle | Enrique González‐García Nasib Balut‐Chahin Claudia Daniela Rojo‐Arce María Eugenia Jiménez Corona Luis Pablo Cruz‐Hervert Jean Marc Retrouvey Assessing Enamel Thickness to Estimate Interproximal Reduction: A CBCT‐Based Study Clinical and Experimental Dental Research CBCT enamel availability enamel thickness interproximal reduction IPR PETa |
| title | Assessing Enamel Thickness to Estimate Interproximal Reduction: A CBCT‐Based Study |
| title_full | Assessing Enamel Thickness to Estimate Interproximal Reduction: A CBCT‐Based Study |
| title_fullStr | Assessing Enamel Thickness to Estimate Interproximal Reduction: A CBCT‐Based Study |
| title_full_unstemmed | Assessing Enamel Thickness to Estimate Interproximal Reduction: A CBCT‐Based Study |
| title_short | Assessing Enamel Thickness to Estimate Interproximal Reduction: A CBCT‐Based Study |
| title_sort | assessing enamel thickness to estimate interproximal reduction a cbct based study |
| topic | CBCT enamel availability enamel thickness interproximal reduction IPR PETa |
| url | https://doi.org/10.1002/cre2.70083 |
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