Experimental computer-assisted alloplastic sandwich augmentation of the atrophic mandible

被引:11
作者
Eufinger, H
Pack, M
Terheyden, H
Wehmöller, M
机构
[1] Univ Hosp Bochum, Dept Oral & Maxillofacial Surg Reg Plast Surg, D-4489 Bochum, Germany
[2] Univ Kiel, Dept Oral & Maxillofacial Surg, D-24105 Kiel, Germany
[3] Univ Bochum, Inst Prod Syst & Proc Tech, D-44780 Bochum, Germany
关键词
D O I
10.1016/S0278-2391(99)90727-9
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Purpose: This study evaluated the effectiveness of a technique that combined computer-aided surgery with alloplastic augmentation and implant-borne prosthodontic rehabilitation of the atrophic mandible. Materials and Methods: Computed tomographic CCT) data from an atrophic cadaver mandible were transferred to a computer-aided design (CAD) system that prepared an anterior sandwich osteotomy. The cranial segment was moved upward and backward to provide an ideal alveolar relationship, and the geometry of the intermediate space was used to design a titanium implant. Furthermore, a surgical template was derived for the osteotomies, and insertion of dental implants was planned to stabilize both the transposed bone and the intermediate implant on the bony base. An identical implant for augmentation was also fabricated from poly-D,L-lactide in a mold as a possible resorbable carrier for osteoinductive proteins. Results: The experimental surgery was successfully performed with maximum precision on the dried mandible. The fabrication of an implant made out of poly-D,L-lactide for the same purpose was also possible. Conclusions: This preliminary experiment showed that, it is possible to use CAD/computer-aided manufacturing (CAM) technology to prepare a prefabricated template and a corresponding titanium implant for mandibular augmentation with a high degree of exactness. Dental implants could be planned and integrated in this procedure as well. The fabrication of a mold using this method also provided the opportunity to give a complex shape to possible carriers of osteoinductive substances.
引用
收藏
页码:1436 / 1440
页数:5
相关论文
共 9 条
[1]   Individual prostheses and resection templates for mandibular resection and reconstruction [J].
Eufinger, H ;
Wehmöller, M ;
Machtens, E .
BRITISH JOURNAL OF ORAL & MAXILLOFACIAL SURGERY, 1997, 35 (06) :413-418
[2]  
EUFINGER H, 1994, INT J ORAL MAX SURG, V23, P399
[3]  
Eufinger H, 1996, INT CONGR SER, V1124, P733
[4]   RECONSTRUCTION OF THE SEVERELY RESORBED MANDIBLE PRIOR TO VESTIBULOPLASTY OR PLACEMENT OF ENDOSSEOUS IMPLANTS - A 2 TO 5 YEAR FOLLOW-UP [J].
HAERS, PEJ ;
VANSTRAATEN, W ;
STOELINGA, PJW ;
DEKOOMEN, HA ;
BLYDORP, PA .
INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, 1991, 20 (03) :149-154
[5]  
HARLE F, 1992, PRAXIS ZAHNHEILKUNDE, P39
[6]   MANDIBULAR RIDGE AUGMENTATION AND RESORPTION WITH VARIOUS VISOR PROCEDURES [J].
MERCIER, P ;
CHOLEWA, J ;
DJOKOVIC, S ;
MASELLA, R ;
VINET, A .
JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, 1982, 40 (11) :709-713
[7]   EFFECT OF FREEZE-DRIED POLY-L-LACTIC ACID DISKS MIXED WITH BONE MORPHOGENETIC PROTEIN ON THE HEALING OF RAT SKULL DEFECTS [J].
MIKI, T ;
HARADA, K ;
IMAI, Y ;
ENOMOTO, S .
JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, 1994, 52 (04) :387-391
[8]  
Schettler D, 1976, Fortschr Kiefer Gesichtschir, V20, P61
[9]   CAD BY PROCESSING OF COMPUTED-TOMOGRAPHY DATA AND CAM OF INDIVIDUALLY DESIGNED PROSTHESES [J].
WEHMOLLER, M ;
EUFINGER, H ;
KRUSE, D ;
MASSBERG, W .
INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, 1995, 24 (01) :90-97