• Journal of Korean society of Dental Hygiene
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• v.15 no.3
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• pp.411-416
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• 2015

Objectives: The purpose of this study is to identify oral health status and oral health care needs of elderly patients in long-term care hospital. Methods: Oral health examination was carried out by a dentist and questionnaire was completed by direct individual interview by a dental hygienist for 245 elderly patients in seven long-term care hospitals in Daegu from March 12 to April 16, 2011. Results: Those who need dental care were 188(76.7%) and was done by oral health examination by a dentist. 93 patients(38.0%) wanted dental care and 63 patients(25.3%) need dental care. The most important dental service in the elderly patients was denture and prosthetic service. As demand for denture and prosthetic service exceeds the supply, but only 35.9 percent of the elderly received the dental care service by the estimation of the caregivers. Conclusions: It will be necessary to establish the customized dental care service for the elderly patients in long term care hospitals. The oral health education for the caregivers is very important and the continuing education program must be implemented in the future.

• The Journal of Korean Academy of Prosthodontics
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• v.59 no.1
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• pp.55-62
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• 2021

The mandible has a smaller support area than the maxilla, and in particular, in patients with generalized alveolar bone resorption, the stability of the denture and the masticatory efficiency are significantly low in the case of conventional complete denture, due to the movement of the tongue and mandible. In these patients, implant overdenture is evaluated as a highly predictable treatment method with high retention and stability, and excellent pronunciation and masticatory force. In this clinical case, patient had an edentulous maxilla and generalized alveolar bone resorption in mandible. Therefore, complete denture was placed in the maxilla and implant overdenture using milled bar attachment on 4 implants was placed in the mandible. During the 12-year follow-up period, changes in periodontal tissue and denture around the implants were periodically managed and observed.

• Journal of Korean society of Dental Hygiene
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• v.12 no.3
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• pp.611-620
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• 2012

Objectives : This study evaluated the changes in surface roughness of denture base resin according to the types of denture cleansers. Methods : A denture base resin(Vertex RS, Dentimax, Netherland) was used. Two toothpaste(Antiplaque, Bukwang, Korea; 2080, Aekyung, Korea) and a kitchen detergent(Trio, Aekyung, Korea) were used as a denture cleanser. The specimens were put on the V8 crossbrushing machine(Sabri enterprises, Downers grove, IL, USA) to reproduce toothbrushing and the toothbrushes were flat, round end and soft type. The surfaces of denture base resin specimens were observed by profilometer(SJ-400, MITUTOYO, Japan) and SEM(S-3000N, Hitachi Co., Ibaraki, Japan). Results : 1. According to the result of measuring surface roughness, there was statistically significant difference in Ra, Rq, and Rz(p<0.05). 2. As for Ra, Rq and Rz, Antiplaque toothpaste showed the highest roughness, and there was significant difference from other groups(p<0.01). 2080 toothpaste, Trio, and distilled water were classified as the same group. 3. According to the result of observation with the SEM, the surfaces of the Antiplaque toothpaste group after toothbrushing showed the greatest roughness, and the surfaces of 2080 toothpaste, Trio, and distilled water groups were rough in order. Trio and distilled water had the surfaces similar to those before toothbrushing. Conclusions : Studies to compare the efficacy of denture management methods and examine the effects of denture cleansers on denture materials will be helpful for dental hygienists and dentists providing patients with proper information and education. And it will be also useful for denture users' oral health.

• The Korean Journal of Health Service Management
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• v.8 no.4
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• pp.69-80
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• 2014

This study examines the relationship between recuperation nurses' oral health knowledge and perceptions and senile denture management behavior. For this study, 198 recuperation nurses who work in recuperation facilities for elderly patients in Andong City, Gyeongsangbuk-do, are surveyed. The data are investigated statistically using t-test, ANOVA, Pearson's correlation analyses, and logistics regression analyses. The analyses results demonstrate that the rate of correct answers for oral health knowledge of recuperation nurses is 76.5%. The relationship between oral health perceptions and oral health knowledge is 0.324, which is slightly high correlation(p<0.01). In addition, the potential of senile denture management behavior is more likely among nurses who have high levels of oral health knowledge and perceptions. Therefore, it is necessary to explore measures that can promote denture management and oral health for the elderly who enter recuperation facilities through helping raise the level of recuperation nurses' oral health knowledge and perceptions.

• The Journal of Advanced Prosthodontics
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• v.4 no.4
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• pp.254-258
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• 2012

Implant-supported overdenture is a reliable treatment option for the patients with edentulous mandible when they have difficulty in using complete dentures. Several options have been used for implant-supported overdenture attachments. Among these, bar attachment system has greater retention and better maintainability than others. SFI-Bar$^{(R)}$ is prefabricated and can be adjustable at chairside. Therefore, laboratory procedures such as soldering and welding are unnecessary, which leads to fewer errors and lower costs. A 67-year-old female patient presented, complaining of mobility of lower anterior teeth with old denture. She had been wearing complete denture in the maxilla and removable partial denture in the mandible with severe bone loss. After extracting the teeth, two implants were placed in front of mental foramen, and SFI-Bar$^{(R)}$ was connected. A tube bar was seated to two adapters through large ball joints and fixation screws, connecting each implant. The length of the tube bar was adjusted according to inter-implant distance. Then, a female part was attached to the bar beneath the new denture. This clinical report describes two-implant-supported overdenture using the SFI-Bar$^{(R)}$ system in a mandibular edentulous patient.

• The Journal of Korean Academy of Prosthodontics
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• v.52 no.4
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• pp.359-365
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• 2014

Successful results of treatments using double crown prostheses for the partially edentulous patients who have a few remaining teeth have been reported in several journals. A double crown removable partial denture can be an alternative treatment for the patients with a poor periodontal condition of remaining teeth. Since a double crown removable partial denture can be applied without the risk of surgical operation to the medically compromised patients with a poor periodontal condition which is inadequate for dental implants, it has psychological and economical advantages. In this case, there were sufficient remaining teeth to be restored with fixed prostheses in maxilla, while there were a few remaining teeth with a very poor periodontal condition so that it was almost impossible to restore with a clasp removable partial denture using these remaining teeth in mandible. In addition, the patient had the medical history of surgical operation due to osteomyelitis in the mandibular anterior areas a year ago, thus difficult to conduct an implant placement. The main objective of this report is to introduce our case because a double crown partial denture using a few mandibular remaining teeth showed satisfactory results in functional and esthetical aspects during more than two years follow-up period in this unfavorable condition.

• The Journal of Korean Academy of Prosthodontics
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• v.62 no.2
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• pp.140-145
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• 2024

Removable partial denture wearers are exposed to the risks that remaining teeth get damaged by caries, attritions, erosion, and fracture. In the case of damaged abutment tooth which should fit to Removable partial denture (RPD), the fabrication of surveyed crown is followed by the making of RPD. However, making new denture takes a long time, and needs several processes and costs. Also, patients should get used to new denture. If other abutment teeth and edentulous ridges provide the existing denture with support, retention, and stability, use of existing denture is considered clinically acceptable. In this situation, fabricating retrofit crowns to an existing removable partial denture makes patient use existing denture, cuts costs, and reduces discomfort. In this case, severely worn teeth were restored using monolithic zirconia crown which fit to an existing removable partial denture by CAD-CAM. Moreover, support, retention, and stability of the denture were improved, and both doctor and patient were satisfied with the result.

• Journal of Korean society of Dental Hygiene
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• v.13 no.6
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• pp.1023-1030
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• 2013

Objectives : The purpose of the study is to investigate the relationship between variables associated with oral health status in psychiatric patients and to provide basic information on oral health education program development for the psychiatric patients. Methods : Subjects were 151 psychiatric patients who filled out the structured questionnaire. The data were analyzed for independent t-test, one-way ANOVA and hierarchical multiple regression by using SPSS Win Program 18.0 version. Results : Higher DMFT index was shown in the older age(p<0.001) and low perceived oral health group(p<0.001). Higher DMFT index included no tooth brushing after breakfast(p=0.045), wrong tooth brushing method(p<0.001). Chewing discomfort(p=0.027) and denture(p=0.027) were closely related to higher DMFT index. Bread(p=0.033) and snack(p<0.001) increased DMFT index. Factors affecting oral health status were age, denture, snack and bread. The explanation power of the final model was 29.4%. Conclusions : Dietary control for the psychiatric patients is very important to prevent dental caries. Tooth brushing and use of oral hygiene devices can improve good oral health care. Furthermore, this result can improve the oral health care for the disabled people.

• The Journal of the Korean dental association
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• v.40 no.1 s.392
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• pp.75-84
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• 2002

• The Journal of Korean Academy of Prosthodontics
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• v.46 no.3
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• pp.261-268
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• 2008

STATEMENT OF PROBLEM: Detachment of the magnetic assembly from the denture base has been a problem in magnetic overdenture patients. PURPOSE: The objectives of this study were to compare the dislodging force by the fixing materials and the designs of the magnetic assembly, and to compare the effect between the fixing materials and the designs of the magnetic assembly. MATERIAL AND METHODS: Two fixing materials, Jet denture repair $acrylic^{(R)}$ and Super-$Bond^{(R)}$ C&$B^{(R)}$ and two types of magnetic assembly designed with or without wing were used. Each magnetic assembly was fixed in the chamber of the denture base resin block ($Lucitone^{(R)}$199) with each fixing material respectively. These specimens were thermocycled 2,000 cycles in the water held at $4^{\circ}C$ and $60^{\circ}C$ with a dwell time of 1 min each time. Each specimen was seated in a testing jig and then a push-out test was performed with a universal testing machine at a cross head speed of 0.5 mm/min to measure the maximum dislodging forces. RESULTS: Comparing the fixing materials, Super-Bond C&$B^{(R)}$ showed superior dislodging force than Jet denture repair $acrylic^{(R)}$. Comparing the design of the magnetic assemblies, the wing design magnetic assembly showed better dislodging force. Combination of the Super-Bond C&$B^{(R)}$ as a fixing material and wing design magnetic assembly revealed a greatest dislodging force. The kind of fixing material was more influential than the type of magnetic assembly. CONCLUSION: The dislodging force of Super-Bond C&$B^{(R)}$ was significantly higher than Jet denture repair $acrylic^{(R)}$. And the dislodging force of magnetic assembly which have wing design was significantly higher than magnetic assembly which have no wing design.