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Prosthetic rehabilitation for a patient with CO-MI discrepancy.

Seung Sik CHOO ; Yoon Hyuk HEO ; Lee Ra CHO ; Chan Jin PARK

Journal of Dental Rehabilitation and Applied Science.2015;31(3):273-282. doi:10.14368/jdras.2015.31.3.273

Centric occlusion-maximum intercuspation (CO-MI) discrepancy is one of main causes of evoking premature contact and resultant mandibular shift. These non-physiological conditions can induce temporomandibular disease, periodontitis, and non-carious cervical lesion. Therefore, if CO-MI discrepancy exists in patients who need extensive prosthetic rehabilitation, it must be corrected and then physiological occlusion must be restored. This report describes the treatment procedure of removing CO-MI discrepancy and prosthetic rehabilitation in a patient with 3.5 mm discrepancy, multiple caries and periodontitis. Proper mandibular position and modified opening & closing movement were confirmed by ARCUSdigma II and transcranial radiograph.
Centric Relation ; Humans ; Periodontitis ; Rehabilitation*

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Full mouth rehabilitation on the patient with class II jaw relation and posterior bite collapse using reestablishment of occlusal vertical dimension: a case report.

Jae Hyun KIM ; Hye Won CHO ; Ji Hye JUNG

Journal of Dental Rehabilitation and Applied Science.2015;31(3):262-272. doi:10.14368/jdras.2015.31.3.262

Loss of molar support and abnormal jaw relationship lead to occlusal disharmony and cause pathologic signs. Full mouth rehabilitations with reestablishment of occlusal schemes are needed. In this case, the 75 year-old female patient showed posterior bite collapse, irregular occlusal plane and Class II jaw relationship. By observing her profile and interocclusal distance, she was diagnosed as loss of occlusal vertical dimension. Treatment plan is to restore maxillay class I removable partial denture and mandibular fixed prosthesis and to establish vertical dimension and harmonious occlusal plane. Occlusal vertical dimension of 19 mm, which is obtained by 7.5 mm increase between maxillary right lateral incisor and mandibular canine, was established using temporary prosthesis via diagnostic wax-up. Patient adaptation with newly formed vertical dimension was verified during 8 week follow-up period. Within the information of interim prostheses, final restoration was constructed and delivered. The patient showed sound occlusal scheme and esthetic profile.
Dental Occlusion ; Denture, Partial, Removable ; Female ; Follow-Up Studies ; Humans ; Incisor ; Jaw* ; Molar ; Mouth Rehabilitation* ; Mouth* ; Prostheses and Implants ; Vertical Dimension*

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Full mouth rehabilitation with a few remaining teeth and implants for a patient with chronic periodontitis: a case report.

Eun Jung SHIN ; Mong Sook VANG ; Hong So YANG ; Sang Won PARK ; Hyun Pil LIM ; Kwi Dug YUN

Journal of Dental Rehabilitation and Applied Science.2015;31(3):253-261. doi:10.14368/jdras.2015.31.3.253

Chronic periodontitis involves subsequent loss of teeth, and if left untreated, can lead to adjacent teeth drifting and supraeruption of the rest dentition. Careful consideration has to be given when deciding extraction of remaining teeth in treatment of periodontally compromised dentitions. For tooth-supported fixed partial dentures or removable partial dentures, periodontally compromised teeth are extracted due to possible early failure from functional overload, but for implant restoration, the teeth could be used as supports for fixed partial dentures because implants can reduce overload on teeth. The remaining natural teeth can help clinicians restoring vertical dimension and normal occlusal plane in full mouth rehabilitation because it conserves patients' proprioceptive response. This clinical report describes treatment of a patient who has a few remaining teeth and supraeruption of the rest dentition from severe chronic periodontitis. Satisfactory clinical result was achieved with full mouth rehabilitation using a few teeth and implants.
Chronic Periodontitis* ; Dental Implants ; Dental Occlusion ; Dentition ; Denture, Partial, Fixed ; Denture, Partial, Removable ; Humans ; Mouth Rehabilitation* ; Mouth* ; Tooth* ; Vertical Dimension

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Implant overdenture treatment using several solitary attachment systems on mandibular edentulous patients.

Mid Eum PARK ; Soo Yeon SHIN

Journal of Dental Rehabilitation and Applied Science.2015;31(3):242-252. doi:10.14368/jdras.2015.31.3.242

Implant overdenture treatment using several solitary attachment systems on mandibular edentulous patients. Most patients with severe residual ridge resorption report significantly more problems adapting to their mandibular denture due to a lack of comfort, retention, stability and to the inability to chew and eat. Recent scientific studies carried out over the past decade have determined that the benefits of a mandibular implant overdenture are sufficient to get retention and stability. Therefore, overdenture with implants on the mandible and attachments are considered as a treatment of choice as a favorable treatment. In this cases, with consideration for jaw relation, level of bone loss, facial support and economic factor, edentulous patients with severe residual ridge resorption are rehabilitated by complete denture on maxilla and two-implants overdenture using several solitary attachment systems on mandible.
Denture, Complete ; Denture, Overlay* ; Dentures ; Humans ; Jaw ; Mandible ; Maxilla

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A full-mouth rehabilitation using zirconia all-ceramic crowns: a case report.

In Seon CHOI ; Dong Woon KIM ; Jung Jin LEE ; Kyoung A KIM ; Jae Min SEO

Journal of Dental Rehabilitation and Applied Science.2015;31(3):231-241. doi:10.14368/jdras.2015.31.3.231

As patients' esthetic expectations increase, there is an increase in demand for cosmetic restorations of anterior and posterior teeth that resemble the natural tooth morphology and color. An example of high-strength all-ceramic systems is zirconia with CAD/CAM application. This case report describes a full-mouth rehabilitation using zirconia all-ceramic crowns supported by upper and lower implants and by a minimal increase in the occlusal vertical dimension in a patient with severe abrasion due to loss of posterior teeth.
Crowns* ; Humans ; Rehabilitation* ; Tooth ; Vertical Dimension

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The user-friendly, ergonomic design aspect of recent intraoral scanners: a literature review.

Hye Nan PARK ; Won Hee KIM ; Young Jun LIM ; Won Jin LEE ; Jung Suk HAN ; Seung Pyo LEE

Journal of Dental Rehabilitation and Applied Science.2015;31(3):221-231. doi:10.14368/jdras.2015.31.3.221

Recently, traditional impression has been rapidly replaced by digital impression using intraoral scanning. There are more than 7 types of intraoral scanners available in the dental market. It is difficult to make effective strategic choices due to a lack of standards and guidelines for optimal intraoral scanning devices. So far, little has been reported about evaluating the ergonomic aspect of these scanners. This literature review compares current intraoral scanning systems based on different types of handles and suggests the most comfortable, user-friendly intraoral scanners from an ergonomic standpoint.
Human Engineering

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Antifungal effect of electrolyzed hydrogen water on Candida albicans biofilm.

Kyung Ryul PYO ; Yun Seung YOO ; Dong Heon BAEK

Journal of Dental Rehabilitation and Applied Science.2015;31(3):212-220. doi:10.14368/jdras.2015.31.3.212

PURPOSE: Candida albicans can cause mucosal disease in many vulnerable patients. Also they are associated with denture-related stomatitis. Electrolyzed water is generated by electric current passed via water using various metal electrodes and has antimicrobial activity. The aim of this study was to investigate antifungal activity of electrolyzed water on C. albicans biofilm. MATERIALS AND METHODS: C. albicans was cultured by sabouraud dextrose broth and F-12 nutrient medium in aerobic and 5% CO2 condition to form blastoconidia (yeast) and hyphae type, respectively. For formation of C. albicans biofilm, C. albicans was cultivated on rough surface 6-well plate by using F-12 nutrient medium in CO2 incubator for 48 hr. After electrolyzing tap water using various metal electrodes, the blastoconidia and hyphal type of C. albicans were treated with electrolyzed water. C. albicans formed blastoconidia and hyphae type when they were cultured by sabouraud dextrose broth and F-12 nutrient medium, respectively. RESULTS: The electrolyzed water using palladium electrode (EWP) exhibited antifungal effect on blastoconidia of C. albicans. Also, the EWP significantly has antifungal activity against C. albicans biofilm and hyphae. In the electrolyzed water using various metal electrodes, only the EWP have antifungal activity. CONCLUSION: The EWP may use a gargle solution and a soaking solution for prevention of oral candidiasis and denture-related stomatitis due to antifungal activity. (
Biofilms* ; Candida albicans* ; Candida* ; Candidiasis, Oral ; Electrodes ; Glucose ; Humans ; Hydrogen* ; Hyphae ; Incubators ; Palladium ; Stomatitis ; Water*

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An investigation of reosseointegration according to time course after mechanical loosening of the osseointegrated implant fixtures.

Sun Hae YE ; Jin Hyun CHO ; Cheong Hee LEE

Journal of Dental Rehabilitation and Applied Science.2015;31(3):203-211. doi:10.14368/jdras.2015.31.3.203

PURPOSE: The purpose of this study was to investigate the reosseointegration periods when the rough surface implants, which had complete bone-implant ankylosis, suddenly losed the osseointegration. MATERIALS AND METHODS: The implants with RBM surface treatment were inserted into both tibias of 23 rabbits. Two implants were submerged into each side. After six weeks, the primary removal torque was measured by Digital torque gauge, and then the implants were replaced and submerged to estimate the level of reosseointegration. After assigned healing periods for each group, the removal torque was measured again. BIC (Bone-Implant contact, %) ratio was measured through histomorphometric analysis.Paired t-test was processed by SPSS 14.0. One-way ANOVA and Tukey's post-hoc test was processed to analyze statistically significant differences among the groups. RESULTS: In comparison with the primary removal torque, the secondary removal torque was increased after 11 days and significantly increased from 2 weeks. In fluorochrome labeling, the origin of mineralization was observed after 7 days, which showed as fluorescent bands around the boneimplant interfaces. After 11 days, the bone formation was apparent, and it is increased continuously with the passage of the time. CONCLUSION: In 11 days after the implant replacement, the secondary removal torque was almost as same as the primary value, and was significantly higher from 2 weeks. The mineralized shapes were observed in 7 days after the implant replacement, and then thebone formation appeared visibly in 11 days.
Ankylosis ; Osseointegration ; Osteogenesis ; Rabbits ; Tibia ; Torque

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Studies on patient's perception and awareness of health insurance coverage for smoking cessation treatment in dentistry.

In Woo CHO ; Hyun Seung SHIN ; Jung Chul PARK

Journal of Dental Rehabilitation and Applied Science.2015;31(3):195-202. doi:10.14368/jdras.2015.31.3.195

PURPOSE: Recently, smoking cessation treatment at dental clinic can be covered by national health insurance. The aim of this study is to evaluate the awareness on the health insurance coverage for smoking cessation treatment in dentistry. MATERIALS AND METHODS: The survey was carried out on 100 new patients of the patients in Dankook Dental Hospital from March to April 2015. The Questionnaire consists of 18 items. RESULTS: The results show that many of patients expect positive effects of the treatment but most of the respondents were not aware of the initiation of health insurance coverage smoking cessation treatment in dentistry. CONCLUSION: The government and ministry of health should pay more attention to the promotion of the smoking cessation treatment in dentistry.
Surveys and Questionnaires ; Dental Clinics ; Dentistry* ; Humans ; Insurance, Health* ; National Health Programs ; Smoke* ; Smoking Cessation* ; Smoking*

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Influence of the length and location of implants on distal extension removable partial dentures: finite element analysis.

Jin Hee KIM ; Jin Hyun CHO ; Cheong Hee LEE

Journal of Dental Rehabilitation and Applied Science.2015;31(3):186-194. doi:10.14368/jdras.2015.31.3.186

PURPOSE: To evaluate the effects of implant location and length on stress distribution and displacement in osseointegrated-implants that were associated with mandibular distal extension removable partial dentures (DERPD). MATERIALS AND METHODS: A sagittally cut model with the #33, #34 teeth and a removable partial denture of the left mandible was used. Seven models were designed with NX 9.0. Models A, B, C had implants with lengths of 11 ,6, 4 mm, respectively, under the denture base of the #37 artificial tooth. Models D, E, F had implants with lengths of 11, 6, 4 mm, respectively, under the denture base of the #36 artificial tooth. Model G did not have any implants. Axial force (250 N) was loaded on #36 central fossa. The finite element analysis was performed with MSC Nastran. Von Mises stress maps were plotted to visualize the results. RESULTS: The models of #37 implant placement showed much lower stress concentration on the surrounding bone of the implant compared with #36. The #36 implant position tended to reduce displacement more than #37. CONCLUSION: When an IARPD is designed, the distal positioning of implant placement has more advantages in the edentulous bone of DERPD on the prognosis of short implants and the stress distribution of edentulous alveolar bone. Using implants with longer lengths are important for stress distribution. However, Additional studies are necessary of the effects of length on implant survival.
Denture Bases ; Denture, Partial, Removable* ; Finite Element Analysis* ; Mandible ; Prognosis ; Tooth ; Tooth, Artificial

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