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The accuracy and stability of the maxillary position after orthognathic surgery using a novel computer-aided surgical simulation system.
Kim, Ju-Won; Kim, Jong-Cheol; Jeong, Chun-Gi; Cheon, Kyeong-Jun; Cho, Seoung-Won; Park, In-Young; Yang, Byoung-Eun.
Afiliação
  • Kim JW; Division of Oral and Maxillofacial Surgery, Hallym University Sacred Heart Hospital, 11, Gwanpyeong-ro 170beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14066, Anyang, Republic of Korea.
  • Kim JC; Graduate School of Clinical Dentistry, Hallym University, Chuncheon, Republic of Korea.
  • Jeong CG; Institute of Clinical Dentistry, Hallym University, Chuncheon, Republic of Korea.
  • Cheon KJ; Division of Oral and Maxillofacial Surgery, Hallym University Sacred Heart Hospital, 11, Gwanpyeong-ro 170beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14066, Anyang, Republic of Korea.
  • Cho SW; Mir Dental Hospital, 12 Gongpyoungro Jung-gu Daegu, 41940, Daegu, Republic of Korea.
  • Park IY; Mir Dental Hospital, 12 Gongpyoungro Jung-gu Daegu, 41940, Daegu, Republic of Korea.
  • Yang BE; Division of Oral and Maxillofacial Surgery, Hallym University Sacred Heart Hospital, 11, Gwanpyeong-ro 170beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14066, Anyang, Republic of Korea.
BMC Oral Health ; 19(1): 18, 2019 01 15.
Article em En | MEDLINE | ID: mdl-30646896
ABSTRACT

BACKGROUND:

Many reports have been published on orthognathic surgery (OGS) using computer-aided surgical simulation (CASS). The purpose of this study was to evaluate the accuracy of the maxillary repositioning and the stability of the maxilla in patients who underwent OGS using a newly developed CASS program, a customized osteotomy guide, and a customized miniplate.

METHODS:

Thirteen patients who underwent OGS from 2015 to 2017 were included. All patients underwent a bimaxillary operation. First, a skull-dentition hybrid 3D image was rendered by merging the cone beam computed tomography (CBCT) images with the dentition scan file. After virtual surgery (VS) using the FaceGide® program, patient-customized osteotomy guides and miniplates were then fabricated and used in the actual operation. To compare the VS with the actual surgery and postoperative skeletal changes, each reference point marked on the image was compared before the operation (T0) and three days (T1), four months (T2), and a year (T3) after the operation, and with the VS (Tv). The differences between ΔTv (Tv-T0) and ΔT1 (T1-T0) were statistically compared using tooth-based reference points. The superimposed images of Tv and T1 were also investigated at eight bone-based reference points. The differences between the reference points of the bone surface were examined to evaluate the stability of the miniplate on the maxilla over time.

RESULTS:

None of the patients experienced complications. There were no significant differences between the reference points based on the cusp tip between ΔTv and ΔT1 (p > 0.01). Additionally, there were no significant differences between the Tv and T1 values of the bone surface (p > 0.01). The mean difference in the bone surface between Tv and T1 was 1.01 ± 0.3 mm. Regarding the stability of the miniplate, there were no significant differences between the groups. The difference in the bone surface between T1 and T3 was - 0.37 ± 0.29 mm.

CONCLUSIONS:

VS was performed using the FaceGide® program, and customized materials produced based on the VS were applied in actual OGS. The maxilla was repositioned in almost the same manner as in the VSP plan, and the maxillary position remained stable for a year.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cirurgia Assistida por Computador / Tomografia Computadorizada de Feixe Cônico / Procedimentos Cirúrgicos Ortognáticos / Maxila Limite: Humans Idioma: En Ano de publicação: 2019 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Cirurgia Assistida por Computador / Tomografia Computadorizada de Feixe Cônico / Procedimentos Cirúrgicos Ortognáticos / Maxila Limite: Humans Idioma: En Ano de publicação: 2019 Tipo de documento: Article