TMJ Position in Symmetric Dentofacial Deformity

Ravelo, Victor; Olate, Gabriela; Moraes, Márcio de; Guevara, Henry Garcia; Parra, Marcelo; Olate, Sérgio

doi:10.3390/jcm11133631

Cited by 6 publications

(6 citation statements)

References 35 publications

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“…Further, in the study by Avendao et al [2], of the 107 articles associated with the relevant subjects, individuals with "class III dentofacial deformities" have been addressed in this research. Observations through the coronal section have defined that the mediolateral distance is greater in class III than in class II after conducting a statistical analysis [3]. As per the findings of Agarwal and Khan [16], the primary aim of this treatment is the achievement of symmetry within the facial profile as well as the conservative management of the lesion, as osteotomies along with "dysplastic jaw bones" have created a significant challenge for fixation only through treatment.…”

Section: Synthesis Of the Resultsmentioning

confidence: 99%

“…The research conducted by Ravelo et al [3] aimed at understanding the role of "facial class," the presence of malocclusion, and the mandibular plane to relate them with condyle position for the evaluation of their roles in symmetric dentofacial deformity. Hence, the classification of different age categories, gender deference, and anomalies on the skeletal class and mandibular plane were illustrated with qualitative and quantitative data.…”

Section: Implications For Clinical Findingsmentioning

confidence: 99%

See 1 more Smart Citation

Surgery-First Approach for Dentofacial Deformity: A Systematic Review

Prakash¹,

Verma²,

Jha³

et al. 2023

Cureus

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This review is based on the surgery-first approach for dentofacial deformity. This review has critically highlighted various promising aspects and factors associated with dentofacial deformity and can be viewed as valuable research work. In addition, this review highlights a systematic manner of surgery that can reduce the possible duration of treatment. The main findings of the review have established that the appropriate approaches to surgery can be beneficial for patients of any age group. The surgery-first approach is mainly utilized for tissue transfer as well as oral cancer as the first-line treatment. This critical review has successfully evaluated the limitations and advantageous traits of the specific surgery approach that has been outlined in this context. It has established the surgery approach as an effective measurement to reduce the time taken for treatment without compromising the patient's health. In the final phase of this review, the accuracy and appropriateness of this surgery-first approach have been effectively demonstrated.

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Section: Synthesis Of the Resultsmentioning

confidence: 99%

Section: Implications For Clinical Findingsmentioning

confidence: 99%

Surgery-First Approach for Dentofacial Deformity: A Systematic Review

Prakash¹,

Verma²,

Jha³

et al. 2023

Cureus

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“…The condylar position into the fossa is related to the skeletal class [26], and surgical treatment with orthognathic surgery will be employed to correct the final position of the condylar head [27] as well as to reduce TMJ pain [28]. Ploder et al [29] performed a study involving 375 subjects treated with orthognathic surgery; they showed significant changes in symptoms of TMJ disease after 2 years of follow up.…”

Section: Discussionmentioning

confidence: 99%

Condylar Positional Changes in Skeletal Class II and Class III Malocclusions after Bimaxillary Orthognathic Surgery

Ravelo,

Olate,

de Moraes

et al. 2023

JPM

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Orthognathic surgery is indicated to modify the position of the maxillomandibular structure; changes in the mandibular position after osteotomy can be related to changes in the position of the mandibular condyle in the articular fossa. The aim of this study was to determine changes produced in the mandibular condyle 6 months after orthognathic surgery. A cross-sectional study was conducted that included subjects who had undergone bimaxillary orthognathic surgery to treat dentofacial deformity of Angle class II (group CII) or Angle class III (group CIII). Standardized images were taken using cone-beam computed tomography 21 days before surgery and 6 months after surgery; measurement scales were used to identify the condylar position and its relations with the anterior, superior, and posterior joint spaces. The results were analyzed using the Shapiro–Wilk and Student’s t-tests, while considering a value of p < 0.05 as indicating a significant difference. Fifty-two joints from 26 patients, with an average age of 27.9 years (±10.81), were analyzed. All subjects in both group CII and group CIII showed a significant change in the anterior, superior, and posterior joint spaces. However, postoperative changes in the position of the condyle in the articular fossa were not significant in the anteroposterior analysis. We conclude that orthognathic surgery causes changes in the sagittal position of the mandibular condyle in subjects with mandibular retrognathism and prognathism.

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“…Before any operative surgery, it is recommended to evaluate the facial disproportion and the condition of the TMJ, since it is known that asymmetrical TMDs are related to changes in anthropometric measures, as changes in some cephalometric parameters might become an important component in determining the existence of TMDs [ 34 ]. The mandibular plane and skeletal class were related to the sagittal position of the TMJ, with a broader mandibular angle and more anterior condyle position in class II individuals and a smaller mandibular angle and more posterior condyle position in class III patients [ 35 ]. The angle of the condyle showed a prominent more oblique position toward the transversal plane of the skull.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the Mandibular Condyle Morphologic Relation before and after Orthognathic Surgery in Class II and III Malocclusion Patients Using Cone Beam Computed Tomography

Roman

Almășan

Hedeșiu

et al. 2022

Biology

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This study aimed at evaluating the mandibular condyle position changes before and after bimaxillary orthognathic surgery in class II and III malocclusion patients. CBCT scans from patients who underwent bimaxillary orthognathic surgery were analyzed: Le Fort I osteotomy and bilateral sagittal split osteotomy (BSSO). Both condyles were independently assessed for their largest anterior and posterior joint spaces, smallest medial joint spaces, and condyle angles concerning the transverse line. In the sagittal plane, the minimum size of the anterior and posterior joint spaces was measured. In the coronal plane, the smallest medial joint space was measured. The position of the condyle within the glenoid fossa was determined before and after surgery. A total of 56 TMJs from 28 patients were studied. Following orthognathic surgery, the anterior and posterior space in class II increased. Postoperatively, the anterior joint space in class III decreased. In 42.85% of malocclusion class II patients and 57.14% of malocclusion class III patients, the pre-and post-surgical position of the condyle changed, the condyle was anteriorly positioned (42.85%) in class II patients and centrically positioned (71.4%) in class III patients. Significant changes in the joint space, condylar position, and condyle angle were found in the class II and class III subjects.

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TMJ Position in Symmetric Dentofacial Deformity

Cited by 6 publications

References 35 publications

Surgery-First Approach for Dentofacial Deformity: A Systematic Review

Surgery-First Approach for Dentofacial Deformity: A Systematic Review

Condylar Positional Changes in Skeletal Class II and Class III Malocclusions after Bimaxillary Orthognathic Surgery

Evaluation of the Mandibular Condyle Morphologic Relation before and after Orthognathic Surgery in Class II and III Malocclusion Patients Using Cone Beam Computed Tomography

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