Micro thread를 포함한 GSⅡ RBM임플란트(Osstem)의 후향적 임상연구

지영덕,오상천,이재환 대한턱관절교합학회 2009 구강회복응용과학지 Vol.25 No.4

Since the introduction of the concept of osseointegration in dental implants, high long-term success rates have been achieved and accepted as viable option for the treatment of fully and partially edentulous patients. Although the use of domestic implants have increased dramatically, there are few studies on domestic implants with clinical and objective long-term data. 96 endosseous implants placed in 31 patients at Wonkwang University Sanbon Dental Hospital were examined to determine the effect of various factors on implant survival rate and marginal bone loss, through clinical and radiographic results. The design of endosseous implant used to this study is straight with the microthread.(GS II RBM Fixture) 1. 3 fixtures were lost, resulting in 96.9% cumulative survival rate. 2. Survival rate in fifties was significantly lower (93.6%) and no significant difference in marginal bone loss was found according to gender. 3. Survival rates were 95.6% in the maxillary molar area and 97.3% in the mandible molar area. 4. No significant difference in survival rate was found according to presence of bone grafts, type of prostheses, implant position, and length and diameter of implant. 5. A factor influencing marginal bone loss was presence of type of prostheses, while facters such a length, diameter of fixture and bone grafts had no statistically significant effect on crestal bone loss. This study indicates the amount of marginal bone loss around implant has maintained a relative stable during follow-up periods.

Implant Placement Using Alveolar Ridge Split in Atrophic Maxillary Alveolar Bone

지영덕 대한구강악안면임플란트학회 2020 대한구강악안면임프란트학회지 Vol.24 No.4

If the volume of the horizontal alveolar bone is insufficient during the implant procedure, it is difficult to establish a fixture of the required diameter without surgical procedures such as block bone graft, lateral bone graft, and ridge split. Among them, alveolar ridge split is known as an effective technique to increase the volume of the horizontal alveolar bone using maxillary bone elasticity. The theoretical background of this technique is to provide a basis for maintaining the implant with the expectation that new bone will form when the implant and bone graft material are operated, forming a space surrounded by the bone and periosteum. In two cases reported herein, there was no postoperative inflammatory reaction and normal healing was observed. Since then, the follow-up radiograph has shown good outcomes, and ongoing progress is being observed. Alveolar ridge split and bone graft are effective techniques for horizontal alveolar augmentation. In these cases, it was actually possible to form a stable alveolar ridge for implant placement through a successful procedure in the maxillary edentulous region.

골형성 유도 단백이 가토의 골신장술에 미치는 영향에 관한 연구

지영덕,오승환,민승기,권경환,이경석 대한악안면성형재건외과학회 2004 Maxillofacial Plastic Reconstructive Surgery Vol.26 No.2

Vertical Ridge Augmentation with Mandibular Ramus Block Bone for Implant Surgery

지영덕 대한구강악안면임플란트학회 2021 대한구강악안면임프란트학회지 Vol.25 No.1

Vertical alveolar bone loss can occur over a long period after tooth loss. When the amount of alveolar bone is insufficient, installing implants of appropriate length becomes difficult. To solve this problem, guided bone regeneration, ridge splitting, alveolar bone distraction osteogenesis, and autogenous onlay block bone graft are used. With these methods, the foundation for implantation is properly formed. The purpose of this study was to establish implants using autogenous block bone grafts taken from the same site in the vertically atrophied mandibular alveolar bone. Block bones were harvested from the same sites, and the surgical site was reduced to one place, which reduced post-operation complications leading to rapid healing. Compared to guided bone regeneration, the block bone graft is well maintained so that implant surgery can be performed adequately. It can be applied in various situations and cases because it is selected depending on the amount of bone required for grafting.

임플란트 수술을 위한 골유도 재생술 (Guided bone regeneration)시 조직접착제를 사용한 골증대술

지영덕 대한구강악안면임플란트학회 2020 대한구강악안면임프란트학회지 Vol.24 No.1

The idea of using a fibrin sealant in the augmentation of the alveolar ridge defects seems attractive because it can produce a dense fibrin clot with sufficient adhesive strength to hold particulate bone in a required configuration. The aim of this clinical investigation is to evaluate the possibility of obtaining bone augmentation around osseointegrated implants by using fibrin sealing system with grafting material. Buccal and lingual local anesthesia was injected. A lingual crestal incision was made connecting the edentulous space. Vertical buccal releasing incisions were performed. A full-thickness flap was then elevated until the mucogingival junction to achieve a tension-free adaptation of the soft tissues. The defects were filled with granules of allograft and alloplast mixed with a fibrin-fibronectin sealing system. Seven-months after surgery, implants were inserted in a prosthetically driven position. At 2nd surgery, a hard bone like tissue was detectable at the defect sites receiving allograft bone grafts with a fibrin-fibronectin sealing system and well maintained. Clinical cases show that the vertical alveolar bone height is well-maintained after alveolar bone augmentation using fibrin sealant because of its sufficient adhesive strength to hold particulate bone in a required configuration.

Implant Surgery for Fixed Implant-supported Prostheses in the Edentulous Mandible: A Case Report

지영덕 대한구강악안면임플란트학회 2021 대한구강악안면임프란트학회지 Vol.25 No.2

Edentulism following extraction of existing teeth due to dental caries, severe periodontal disease, or surgical damage can be treated with implants using complete dentures, implant-supported overdentures, or fixed implant-supported prostheses. Fixed implant-supported prostheses have higher masticatory efficiency than removable prostheses and may provide patients with psychological stability. Moreover, when compared with traditional removable complete dentures, fixed implantsupported prostheses have better stability and retention, help improve the mental health of the patients, and provide them with opportunities to respond more actively to the society. In this report, patients preferred fixed implant-supported prostheses, which were advantageous in terms of masticatory efficiency, patient satisfaction, and distribution of stress compared to removable prostheses. Thus, they were considered the first priority. In case 1, a fixed implant-supported prosthesis was fabricated by placing 12 implants in a patient with edentulous mandible who was using a mandibular complete denture, but complained of denture displacement and masticatory dysfunction. In case 2, a fixed implant-supported prosthesis was fabricated by placing eight implants in a patient with an edentulous mandible whose entire mandibular dentition had been extracted due to severe periodontitis. Satisfactory functional and esthetic outcomes were achieved with fabrication and placement of fixed implant-supported prostheses in these patients.

상악 무치악 환자에서 양측 상악동골이식을 동반한 임플란트 식립술: 증례보고

지영덕 대한구강악안면임플란트학회 2020 대한구강악안면임프란트학회지 Vol.24 No.2

There are a variety of prosthetic methods for restoring edentulous patients. Among them, the dental implant is a stable and easily applicable option. When the remaining bone is insufficient for supporting the dental implant, alveolar bone augmentation can stably retain implant, and its prognosis will be favorable. The maxillary sinus elevation with bone graft procedure is relatively easy and has a good prognosis. In these cases, remaining maxillary teeth were extracted, bone grafts with maxillary sinus elevations were performed at the bilateral maxillary molar region at a onemonth interval, and ten implants were placed seven months later. Two weeks after the sinus elevation surgery, the sutures were removed. Postoperative healing was normal without any inflammatory reaction, and the implant-supported fixed prosthesis was delivered to the patient. The patient was satisfied with the results from the esthetic and functional aspects. Implant surgery to rehabilitate the edentulous area are a useful and attractive procedure. It is helpful to increase the implant stability by sinus grafting bone.

스마트 건설사례 - TPMS

지영덕,Ji, Yeong-Deok 한국건설관리학회 2012 건설관리 : 한국건설관리학회 학회지 Vol.13 No.2

치과용 임프란트를 이용한 치아회복에 관한 임상적 평가

지영덕,이동근 원광대학교 치의학연구소 1997 圓光齒醫學 Vol.7 No.1

The use of osseointegrated implants is an accepted procedure for the treatment of total, or partial edentulism and offers good predictability of long-term success. Osseointegration implies a firm and direct interlocking between vital bone and screw-shaped titanium implants. there should be not to interposed tissue between fixture and bone. This study was undertaken to assess the clinical condition, complication, and prosthodontic aftercare of different implant systems. Ninety-one patients treated with a total of 276 endosseous implants (190 Steri-ossthreaded type, 52 Integral cylinder with HA coated type, 22 Steri-oss threaded with HA coated type, 12 Steri-oss cylinder with HA coated type). Most of the implants were placed in type B and C bone quantity and type 2 and 3 bone quality according to Lekhorm and Zarb. The success rate of Steri-oss threaded type during healing and function was 92%, Steri-oss threaded type with hydroxyapatite coated was 95%, Steri-oss cylinder type with hydroxyapatite coated was 91%, Integral cylinder type with htdroxyapatite coated was 90%. Seventy-four patients had been treated with implant prosthesis. Forty-seven of these patients had received a fixed type prosthesis and twenty-seven patients had received a removable type prosthesis. There were no differences between the implant systems with regard to age, gender. Failures were associate with poor bone quality, smaller implant sizes, a surgical installation technique and stress distribution when in function. Visual analogue scales recorded as satisfied results functionally and esthetically, but 17% dissatified with chewing ability.

Titanium Mesh for Bone Augmentation in Oral Implant Surgery

지영덕 대한구강악안면임플란트학회 2021 대한구강악안면임프란트학회지 Vol.25 No.4

Bone augmentation should be performed to recover a sufficient amount of bone before implant placement at the site where a bone defect occurs due to bone resorption caused by tooth extraction or periodontitis. Currently, bone augmentation through guided bone regeneration is widely used at the site of bone defects. However, after guided bone regeneration, the bone cannot maintain its shape when the procedure is performed at the site of a vertical bone defect. In such a case, bone augmentation for the desired shape can be performed using a titanium-reinforced membrane or titanium mesh to maintain the space three-dimensionally and create a bone shape at the site of the vertical bone defect. Titanium mesh, with its superior mechanical properties, prevents the collapse of the shape at the bone transplantation site, and enhances the stabilization of the wound by maintaining the space, enhancing the effect of bone regeneration, and contributing to the morphological enhancement of the regenerated alveolar bone. In this case, after bone augmentation was performed using titanium mesh at the site where the bone defect was large or a vertical bone defect occurred, the implant was placed, which led to a good outcome.