Journal of Yeungnam Medical Science

Original Articles

Results of Maxillary Sinus Lift and Maxillary Sinus Floor Elevation with Osteotome for Endosseous Implant Placement: Mi-Ryoung Kim, Byung-Rho Chin; Yeungnam Univ J Med. 2007;24(2 Suppl):S463-471. Published online December 31, 2007; DOI: https://doi.org/10.12701/yujm.2007.24.2S.S463

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Abstract PDF: Background
：Dental implantation has become predictable treatment for dental prosthodontics. But maxillary posterior jaw region is often complicated by the pneumatization of the maxillary sinus and physiological resorption of the alveolar bone. When this occurs, the residual bone between the floor of the sinus and the crestal ridge is inadequate for the placement of implants. The sinus lift and sinus floor elevation with osteotome procedures provide a way to increase the amount of available bone and to allow the placement of longer implants. Materials & methods：We studied 26 patients requiring the implant placements and the maxillary sinus elevation simultaneously from 1996 to 2007 in our clinic. Twenty were males and six were females, aged from 25 to 73 (mean=52.3). Fourteen patients had medical compromised states; angina pectoris, diabetes, hypertension, hepatitis, Penicillin allergy. All of the patients didn’t show any pathologic findings clinically or radiographically. We studied the success and survival rate of implants and factors increasing the osseointegrating capacity of implants.
Results
：The success rate of osseointegration of implants with the maxillary sinus lift was 94%. The success rate of osseointegration of implants with the maxiilary sinus floor elevation used osteotome was 100%. At least 6 months after loading on implants, the survival rate of implants with the maxillary sinus lift was 82.3% and the survival rate of implants with the maxillary sinus floor elevation used osteotome was 100%. Autogenous bone graft and adequate residual bone height (>6mm) increased survival rate of implants.
Conclusion
：Successful implant placement with maxillary sinus lift and maxillary sinus floor elevation used osteotome mainly depends on sufficient residual bone height, healthy maxillary sinus, autogenous bone graft.

Results of Maxillary Sinus Elevation for Endosseous Implant Placement.: Sang Deuk Chun, Bo Yeon Jung, Seung Eun Lee, Hong Sik Yoon, Byung Rho Chin; Yeungnam Univ J Med. 2003;20(2):169-176. Published online December 31, 2003; DOI: https://doi.org/10.12701/yujm.2003.20.2.169

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Abstract PDF: BACKGROUND
Although dental implantation has become widespread and acceptable treatment for dental prosthodontics, maxillary posterior jaw region is often complicated by the pneumatization of the maxillary sinus and physiological resorption of the alveolar bone. When this occurs, the residual bone between the floor of the sinus and the crestal ridge is inadequate for the placement of implants. The sinus elevation procedure provides a way to increase the amount of available bone and to allow the placement of longer implants. MATERIALS & METHODS: We studied 11 patients requiring the implant placements and the maxillary sinus elevation simultaneously from 1996 to 2003 in our clinic. Nine patients were males and two patients were females, aged from 39 to 72(mean=51.6). Four patients had medical compromised states; angina pectoris, diabetes, hypertension, hepatitis. Patients didn't show any pathologic findings clinically or radiographically. We studied the success and survival rate of implants, factors increasing the osseointegrating capacity of implants. RESULTS: The success rate of osseointegration of implants was 93%. At least 6 months after loading on implants, the survival rate of implants was 78.5%. Autogenous bone graft and adequate residual bone height(>6mm) increased survival rate of implants. CONCLUSION: Successful implant placement with maxillary sinus elevation mainly depends on sufficient residual bone height, healthy maxillary sinus, autogenous bone graft.

Case Reports

A case of orthognatic surgery in congenital alveolar-palatal cleft patient.: Jae Hyun Park, Myung Jin Lee, Chang Kon Lee, Jong Sub Kim, Byung Rho Chin, Hee Kyung Lee; Yeungnam Univ J Med. 1992;9(1):189-196. Published online June 30, 1992; DOI: https://doi.org/10.12701/yujm.1992.9.1.189

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Abstract PDF: Pre-surgical and post-surgical change in adult clef lip and palate patient following Le Fort I advancement osteotomy combined with bone graft was evaluated clinically and cephalometically. We obtained a successful function and esthetic improvement. The bone graft of alveolo-palatal clefts provides a stable bone support to the adjacent teeth of the cleft area, and well union of adjacent bone tissue, the closure of oronasal fistula and improvement of speech problem. Le Fort I osteotomy following the ostectomy of nasal septum for advancement of the maxilla was obtained relative improvement of esthetics and functional occlusion. 1. The orthodontic correction was required before and after surgery. 2. In this case, there was a limited range of anterior advancement of the Premaxillary-segment due to the scar tissue. 3. After 8 months of operation, we could show the new bone deposition on the cleft sites in dental radiograph and then the prosthetic treatment to the missing teeth was done.

Case reports of bone grafting in unilateral alveolar-palatal cleft patients.: Yun Ho Bae, Jae Hyun Park, Myeong Jin Lee, Chang Gon Lee, Byung Rho Chin, Hee Kyeung Lee; Yeungnam Univ J Med. 1991;8(1):198-205. Published online June 30, 1991; DOI: https://doi.org/10.12701/yujm.1991.8.1.198

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Abstract PDF: We obtained successful functional and esthetic results by grafting of iliac marrow-cancellous bone in 2 cases of alveolar-palatal cleft patients. Bone graft of alveolar-palatal clefts provide bony support to adjacent teeth of cleft area, prevented from relapse of orthodontic arch expansion, closure of oroantral fistula and improvement of speech problem. 1. In one case, extraction of upper right central incisor that was little bone support, alignment of rotated teeth and expansion of collapsed arch segment were done with pre-orthodontic treatment. The other case. Bone grafting was done after removal of prosthesis with no pre-orthodontic treatment. 2. After mucoperiosteal incision in cleft area, the mucosal flap of labial area, palate and nose were separation and the raised nasal mucosa was sutured for closure of oroantral fistula. Then, the iliac marrow-cancellous bones were grafted to cleft site. 3. After 6 months of operation, we had seen the new bone deposition to cleft site in dental radiograph and prosthetic treatment of missing teeth were done.

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