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Clinical changes of TMD and condyle stability after two jaw surgery with and without preceding TMD treatments in class III patients.

Yoon SY, Song JM, Kim YD, Chung IK, Shin SH - Maxillofac Plast Reconstr Surg (2015)

Bottom Line: Significances were assessed by the Wilcoxon signed rank test on SPSS ver. 20.0.Both groups had favorable changes of TMJ symptoms after orthognathic surgery.And postoperative position of condyle had good stability during follow-up period. 2 jaw surgery without preceding treatments for TMD can have therapeutic effect for TMD patients with class III malocclusion.

View Article: PubMed Central - PubMed

Affiliation: Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, 49 Busandaehak-ro, Mulgeum-eup, Yangsan, 626-870 Korea.

ABSTRACT

Background: This study are to identify the symptomatic changes and condylar stability after 2 jaw surgery without preceding treatments for Temporomandibular joints(TMJ) in class III patients with the TMJ symptoms; and to assess therapeutic effect of 2 jaw surgery and the necessity of preceding treatment for alleviation of TMJ symptoms.

Methods: 30 prognathic patients with preexisting TMJ symptoms were divided into 2 groups according to presence or absence of preceding treatments before the surgery. We evaluated symptomatic changes on both TMJ by questionnaires and clinical examinations. And we reconstructed 3D cone beam computed tomography images before 2 jaw surgery, immediately after the surgery, and 6 months or more after the surgery with SimPlant software, and analyzed the stability of condylar position on 3D reconstruction model. Significances were assessed by the Wilcoxon signed rank test on SPSS ver. 20.0.

Results: Both groups had favorable changes of TMJ symptoms after orthognathic surgery. And postoperative position of condyle had good stability during follow-up period.

Conclusion: 2 jaw surgery without preceding treatments for TMD can have therapeutic effect for TMD patients with class III malocclusion.

No MeSH data available.


Related in: MedlinePlus

Measurements on 3D CBCT images.a. Sagittal view (Left); b. Axial view; c. Coronal view.
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Fig2: Measurements on 3D CBCT images.a. Sagittal view (Left); b. Axial view; c. Coronal view.

Mentions: The patients underwent 3D CBCT imaging with the closed mouth (Pax-Zenith 3D, VATECH, Korea). For ascertainment of positional changes in both condyles, dental CBCT (DCT) images were reconstructed with 3D dental image software (SimPlant Pro Crystal for Intel X86 Platform V13. 0. 1. 4, Belgium). On the basis of three reference planes and twenty-five reference points set up on 3D reconstruction model, fifteen measurements were obtained (Figures 1 and 2, Tables 1 and 2).


Clinical changes of TMD and condyle stability after two jaw surgery with and without preceding TMD treatments in class III patients.

Yoon SY, Song JM, Kim YD, Chung IK, Shin SH - Maxillofac Plast Reconstr Surg (2015)

Measurements on 3D CBCT images.a. Sagittal view (Left); b. Axial view; c. Coronal view.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4336403&req=5

Fig2: Measurements on 3D CBCT images.a. Sagittal view (Left); b. Axial view; c. Coronal view.
Mentions: The patients underwent 3D CBCT imaging with the closed mouth (Pax-Zenith 3D, VATECH, Korea). For ascertainment of positional changes in both condyles, dental CBCT (DCT) images were reconstructed with 3D dental image software (SimPlant Pro Crystal for Intel X86 Platform V13. 0. 1. 4, Belgium). On the basis of three reference planes and twenty-five reference points set up on 3D reconstruction model, fifteen measurements were obtained (Figures 1 and 2, Tables 1 and 2).

Bottom Line: Significances were assessed by the Wilcoxon signed rank test on SPSS ver. 20.0.Both groups had favorable changes of TMJ symptoms after orthognathic surgery.And postoperative position of condyle had good stability during follow-up period. 2 jaw surgery without preceding treatments for TMD can have therapeutic effect for TMD patients with class III malocclusion.

View Article: PubMed Central - PubMed

Affiliation: Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, 49 Busandaehak-ro, Mulgeum-eup, Yangsan, 626-870 Korea.

ABSTRACT

Background: This study are to identify the symptomatic changes and condylar stability after 2 jaw surgery without preceding treatments for Temporomandibular joints(TMJ) in class III patients with the TMJ symptoms; and to assess therapeutic effect of 2 jaw surgery and the necessity of preceding treatment for alleviation of TMJ symptoms.

Methods: 30 prognathic patients with preexisting TMJ symptoms were divided into 2 groups according to presence or absence of preceding treatments before the surgery. We evaluated symptomatic changes on both TMJ by questionnaires and clinical examinations. And we reconstructed 3D cone beam computed tomography images before 2 jaw surgery, immediately after the surgery, and 6 months or more after the surgery with SimPlant software, and analyzed the stability of condylar position on 3D reconstruction model. Significances were assessed by the Wilcoxon signed rank test on SPSS ver. 20.0.

Results: Both groups had favorable changes of TMJ symptoms after orthognathic surgery. And postoperative position of condyle had good stability during follow-up period.

Conclusion: 2 jaw surgery without preceding treatments for TMD can have therapeutic effect for TMD patients with class III malocclusion.

No MeSH data available.


Related in: MedlinePlus