牙颌面畸形小讲课蔡鸣
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Transcript of 牙颌面畸形小讲课蔡鸣
- Dental facialDeformities
Cai Ming
Dept. of OMS, Shanghai 9th people’s hospital, Jiao tong University
Orthognathic Surgery
Definition
Classification
Treatment plan
CLASSIFICATION
Vertical
Sagittal
Transverse
Bimaxillary
Asymmetric
Hyperplasia
Hypoplasia
AngleAngle 分类分类
Angle Ⅰ 正常
Angle Ⅰ 错
Angle Ⅱ 错
Angle Ⅲ 错
下颌后缩或上颌前突
上颌后缩或下颌前突
ETIOLOGY
Congenetial
Acquired
EXAMINATION
History
Clinical finding
Laboratory
LaterallyFrontally
Teeth
Dental
Mouth opening
TMJ
X-Ray
Model
Photographic
Cephelometric Analysis
1.硬组织测量标志点
颅部 蝶鞍点( S )
鼻根点( N )
机械耳点 (P)
上颌骨 前鼻棘 (ANS)
上齿槽座点( A )
上中切牙点( U1 )下颌骨 下齿槽座点( B )
下中切牙点( L1 )
颏前点( Pg )
颏下点 (Me)
颏顶点 (Gn)
额点( G )
鼻小柱点( Cm )
鼻下点( Sn )
上唇缘点( UL )
下唇缘点( LL )
软组织颏前点
(Pgs)
软组织颏下点
(Mes)
颈点( C )
1.软组织测量标志点
Reference Plane and Angel
CaseCaseSNA 78°SNB 85 °ANB 7 °
S
N
A
B
SN
A
B
SNA 76°SNB 70 °ANB 6 °
Treatment Plan
Examination
Diagnosis
Joint orthognathic & orthodontic assessment
Presurgical Orthodontics
Postsurgical Orthodontics
Surgical Plan
Or t hognat hi c Sur ge r y
Objective of Presurgical Orthodontic
Decompansation
(angulation teeth, accentuate deformities)
Alignment
Compatibility
PREPARATION
Caries & Peridontal disease
Visal treament objective
Model surgery
Computer aided analyze
VTO
SURGICAL TREAMENT PHASE
Maxilla
Mandible
Maxillary segmental osteotomy (Anterior / Posterior)
Indications:
- maxillary protrusion
- marked protrusion of
maxillary teeth
- open bite
Le Fort I osteotomy
(total or segmental)
Indications:
- maxillary deformities
- mandibular deformities
常用正颌外科截骨线常用正颌外科截骨线 --- --- Le fort I osteotomyLe fort I osteotomy
Le Fort II or III osteotomy
Indications:
- midface deficiency
Sagittal split ramus osteotomy,
SSRO
Indications:
- mandibular excess
- mandibular
deficiency
- mandibular
asymmetry Adback
rotate
Vertical ramus osteotomy
Indications:
- mandibular excess
- mandibular asymmetry
(combined with SSRO)
back
Subapical osteotomy
Indications:
- bimaxillary protrusion / open bite
- leveling the plane of occlusion
- uprighting anterior teeth
Body osteotomy
Indications:
- mandibular excess (body)
combined with ramus procedure or not
- open bite / spee’s curve reduction
Genioplasty
Indications:
- chin deformities
Pretreatment
Model Surgery
PostLe Fort I &genioplasty
SNA 88°
SNB 81°
ANB 7° SNA 84°
SNB 81°
ANB 3°
Distraction Osteogenesis
颅骨外固定牵引装置
颅骨外固定牵引装置
截骨位置
截骨位置
口内固定牵引装置
口内固定牵引装置
3-D CT 3-D Model
Simulated Operation
Surgery
Distraction Osteogenesis
• 颞颌关节成形颞颌关节成形 // 再造术再造术• 颏前移舌骨悬吊术 颏前移舌骨悬吊术• 上、下颌牵引成骨术 上、下颌牵引成骨术• 双颌前移术 双颌前移术• 颌骨重建术 颌骨重建术
颅颌硬组颅颌硬组织畸织畸形或缺损形或缺损患者患者 手术治手术治
疗疗
术前正压术前正压 通气治疗 通气治疗
以以形态形态畸形原
因畸形原
因
…为主患
者…为主患
者
• 呼吸道管理呼吸道管理
• 随随访访
术术后后
留管留管 11 -- 33 天天CPAPCPAP
• 减肥减肥 // 体重控制体重控制
患者 患者
• 患者颅颌面检查 患者颅颌面检查• 头颅定位测量分析 头颅定位测量分析• 鼻咽纤维镜 鼻咽纤维镜• 上气道压力检测上气道压力检测• 神经神经 -- 肌功能检查肌功能检查
PSGPSG
上气上气道道形态形态学和学和功能功能检查检查
阻阻塞塞原原因因部部位位程程度度
CPAPCPAP非手术治疗
非手术治疗 口腔功能矫治器口腔功能矫治器减肥减肥
睡眠呼吸障碍诊疗睡眠呼吸障碍诊疗
颅颌软组织畸形颅颌软组织畸形患者(肥胖、肿患者(肥胖、肿瘤等患者)瘤等患者) • 体重控制、减肥治疗体重控制、减肥治疗
• 定量定量 UPPPUPPP 术+舌骨悬吊术 术+舌骨悬吊术• 射频温控减容术 射频温控减容术
• 双颌前移术 双颌前移术• 肿瘤+重建手术 肿瘤+重建手术
• 舌根舌根 // 舌体减容术 舌体减容术
Thank You