Long-term effects of orthognathic surgery on masticatory function in individuals with cleft lip and palate: A prospective study
Objective: To prospectively evaluate the long-term effects of orthognathic surgery on masticatory function in individuals with repaired complete cleft lip and palate and to compare the results with a control group. Material and methods: A total of 40 individuals were prospectively analyzed before (P...
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Elsevier
2025-01-01
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| Series: | Journal of Oral Biology and Craniofacial Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212426824001635 |
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| author | Patricia Martins Bueno Paulo Alceu Kiemle Trindade Laís Hollara Medeiros Leide Vilma Fidélis da Silva Ivy Kiemle Trindade-Suedam |
| author_facet | Patricia Martins Bueno Paulo Alceu Kiemle Trindade Laís Hollara Medeiros Leide Vilma Fidélis da Silva Ivy Kiemle Trindade-Suedam |
| author_sort | Patricia Martins Bueno |
| collection | DOAJ |
| description | Objective: To prospectively evaluate the long-term effects of orthognathic surgery on masticatory function in individuals with repaired complete cleft lip and palate and to compare the results with a control group. Material and methods: A total of 40 individuals were prospectively analyzed before (PRE-ORTHOG) and approximately 12 months after orthognathic surgery (POST-ORTHOG). The participants were divided into two groups: 1) Cleft Lip and Palate Group (CLP): 20 adults with CLP undergoing orthognathic surgery (14 ♂, 6 ♀, age 24 ± 3 years), and 2) Control Group (CON): 20 paired adults with Angle Class I skeletal pattern who had never undergone orthognathic surgery (14 ♂, 6 ♀, age 25 ± 5 years). Three variables were evaluated: 1) Bite Force (BF) (measured in Newtons – N) presented as the average of the bite force from the right and left molars (x‾ RM + LM), using a gnathodynamometer (IDDK Kratos), 2) Masticatory Efficiency (ME) (ranging from 0 to 1, with values closer to 1 indicating poorer efficiency), assessed through a dual-color masticatory gum test analyzed visually and optoelectronically (ViewGum©), and 3) Masticatory Capacity (MC): patient-reported ability to chew, rated on a two-point scale (P/R = poor to reasonable, G/O = good to optimal). Results: In the PRE-ORTHOG phase, the BF for the CLP group (x‾ RM + LM = 285 ± 141) was significantly lower compared to the CON group (x‾ RM + LM = 524 ± 202). In the POST-ORTHOG phase, the CLP group (x‾ RM + LM = 373 ± 129) showed significant improvements in BF in relation to the PRE-ORTHOG phase, with values similar to those of the CON group. Masticatory efficiency improved significantly in the POST-ORTHOG phase (0.222 ± 0.071) compared to PRE-ORTHOG (0.470 ± 0.126) in the CLP group, while PRE-ORTHOG values were worse than those of the CON group (0.148 ± 0.050). Furthermore, 45 % of CLP participants reported P/R MC before surgery, while none reported this after surgery, a statistically significant improvement. The POST-ORTHOG MC results for CLP participants were comparable to the CON group, with 100 % reporting G/O MC after surgery. Conclusions: Overall, the group with CLP demonstrated impaired masticatory function in the preoperative phase compared to the control group across all variables analyzed. Orthognathic surgery improves masticatory function in patients with CLP, with postoperative parameters comparable to those of the control group. |
| format | Article |
| id | doaj-art-4ee9a7ef3bc24fdab7c22940d11cfb32 |
| institution | Kabale University |
| issn | 2212-4268 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
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| series | Journal of Oral Biology and Craniofacial Research |
| spelling | doaj-art-4ee9a7ef3bc24fdab7c22940d11cfb322025-02-09T05:00:07ZengElsevierJournal of Oral Biology and Craniofacial Research2212-42682025-01-011513340Long-term effects of orthognathic surgery on masticatory function in individuals with cleft lip and palate: A prospective studyPatricia Martins Bueno0Paulo Alceu Kiemle Trindade1Laís Hollara Medeiros2Leide Vilma Fidélis da Silva3Ivy Kiemle Trindade-Suedam4Postgraduate Program in Rehabilitation Sciences, Laboratory of Physiology, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, BrazilHospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, BrazilPostgraduate Program in Rehabilitation Sciences, Laboratory of Physiology, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, BrazilPostgraduate Program in Rehabilitation Sciences, Laboratory of Physiology, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, BrazilDepartment of Biological Sciences, Bauru School of Dentistry and Laboratory of Physiology, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, Brazil; Corresponding author.Objective: To prospectively evaluate the long-term effects of orthognathic surgery on masticatory function in individuals with repaired complete cleft lip and palate and to compare the results with a control group. Material and methods: A total of 40 individuals were prospectively analyzed before (PRE-ORTHOG) and approximately 12 months after orthognathic surgery (POST-ORTHOG). The participants were divided into two groups: 1) Cleft Lip and Palate Group (CLP): 20 adults with CLP undergoing orthognathic surgery (14 ♂, 6 ♀, age 24 ± 3 years), and 2) Control Group (CON): 20 paired adults with Angle Class I skeletal pattern who had never undergone orthognathic surgery (14 ♂, 6 ♀, age 25 ± 5 years). Three variables were evaluated: 1) Bite Force (BF) (measured in Newtons – N) presented as the average of the bite force from the right and left molars (x‾ RM + LM), using a gnathodynamometer (IDDK Kratos), 2) Masticatory Efficiency (ME) (ranging from 0 to 1, with values closer to 1 indicating poorer efficiency), assessed through a dual-color masticatory gum test analyzed visually and optoelectronically (ViewGum©), and 3) Masticatory Capacity (MC): patient-reported ability to chew, rated on a two-point scale (P/R = poor to reasonable, G/O = good to optimal). Results: In the PRE-ORTHOG phase, the BF for the CLP group (x‾ RM + LM = 285 ± 141) was significantly lower compared to the CON group (x‾ RM + LM = 524 ± 202). In the POST-ORTHOG phase, the CLP group (x‾ RM + LM = 373 ± 129) showed significant improvements in BF in relation to the PRE-ORTHOG phase, with values similar to those of the CON group. Masticatory efficiency improved significantly in the POST-ORTHOG phase (0.222 ± 0.071) compared to PRE-ORTHOG (0.470 ± 0.126) in the CLP group, while PRE-ORTHOG values were worse than those of the CON group (0.148 ± 0.050). Furthermore, 45 % of CLP participants reported P/R MC before surgery, while none reported this after surgery, a statistically significant improvement. The POST-ORTHOG MC results for CLP participants were comparable to the CON group, with 100 % reporting G/O MC after surgery. Conclusions: Overall, the group with CLP demonstrated impaired masticatory function in the preoperative phase compared to the control group across all variables analyzed. Orthognathic surgery improves masticatory function in patients with CLP, with postoperative parameters comparable to those of the control group.http://www.sciencedirect.com/science/article/pii/S2212426824001635Orthognathic surgeryPalatal cleftBite forceStomatognathic systemMasticatory efficiencyMasticatory |
| spellingShingle | Patricia Martins Bueno Paulo Alceu Kiemle Trindade Laís Hollara Medeiros Leide Vilma Fidélis da Silva Ivy Kiemle Trindade-Suedam Long-term effects of orthognathic surgery on masticatory function in individuals with cleft lip and palate: A prospective study Journal of Oral Biology and Craniofacial Research Orthognathic surgery Palatal cleft Bite force Stomatognathic system Masticatory efficiency Masticatory |
| title | Long-term effects of orthognathic surgery on masticatory function in individuals with cleft lip and palate: A prospective study |
| title_full | Long-term effects of orthognathic surgery on masticatory function in individuals with cleft lip and palate: A prospective study |
| title_fullStr | Long-term effects of orthognathic surgery on masticatory function in individuals with cleft lip and palate: A prospective study |
| title_full_unstemmed | Long-term effects of orthognathic surgery on masticatory function in individuals with cleft lip and palate: A prospective study |
| title_short | Long-term effects of orthognathic surgery on masticatory function in individuals with cleft lip and palate: A prospective study |
| title_sort | long term effects of orthognathic surgery on masticatory function in individuals with cleft lip and palate a prospective study |
| topic | Orthognathic surgery Palatal cleft Bite force Stomatognathic system Masticatory efficiency Masticatory |
| url | http://www.sciencedirect.com/science/article/pii/S2212426824001635 |
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