• Journal of Korean Biological Nursing Science
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• v.18 no.4
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• pp.239-246
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• 2016

Purpose: The purpose of this study was to investigate the effect of denture care skills education program on denture self-care, denture satisfaction and subjective oral status among the elderly. Methods: The research design for this study was a non-equivalent control group quasi-experimental design. Total 61 elderly who visited a seniors center, Seoul, Korea, participated in this study. Participants were 31 elderly for the experimental group and 30 elderly for the control group. The experimental group received a lesson in denture care skills education program which was developed by the researchers. Using a structural questionnaire, the elderly's perception about denture self-care, denture satisfaction and subjective oral status were measured before and after the intervention. Descriptive statistics, independent t-test, chi-square test, and ANCOVA test were performed using SPSS WIN 21.0. Results: The experimental group showed significantly higher scores in denture satisfaction(p<.001), QOL of oral health(<.001), concern for oral health(p=.005), subjective oral health status(p<.001), bad breath(p=.010), oral dryness(p<.001) and number of denture clearing(p<.001). Conclusion: The results suggest that the denture care skills education program for elderly at a senior center was effective. Further work is required to develop more effective denture care skills education programs and an oral health promotion program to improve the health status of the elderly.

• The Journal of Korean Academy of Prosthodontics
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• v.37 no.6
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• pp.819-824
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• 1999

The purpose of this article is to present a clinical case report for palateless complete denture. Despite the contravacy of palatal uncoverage in upper complete denture, palateless complete denture has some merits for upper edentulous patient. Following the uncovering of the palatal portion, the patient became easy to talk and restored the lost good tastes. He is happy despite of the decrease of the retention of the upper complete denture. Palateless complete denture is a compatible alternative fir upper edentulous patients in cases of gagging, large palatal torus and restoring the lost good tastes. The clinical points are as follows : 1. The remaning alveolar ridge should be ovoid and have enough width and height for the sup-port and retention. 2. The patient must have strong wish to the palateless complete denture. 3. Palatal beading made on the palatal peripheral border give good border sealing of the palatal flange and minimaized the prominence of the denture flange 4. The peripheral border of the palatal flange should be reduced as thin as possible for more comfort. 5. Upper artificial posterior teeth should be arranged over the alveolar ridge crest and inner incline of the buccal cusp relieved for denture stability while chewing. 6. For stability of palateless complete denture, bilateral balanced occlusion should be sttained. Palateless complete denture will restore the lost good tastes and more comfortable and physiologic to upper edentulous patients and a good alternative to full palatal coverage complete denture in the properly selected cases.

• Journal of Korean society of Dental Hygiene
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• v.10 no.5
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• pp.789-796
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• 2010

Objectives : This study aims to identify factors affecting satisfaction among the elderly with complete denture to help the elderly with complete denture perform oral hygienic care and to contribute to improvement in oral health. Methods : Interviews were performed with 247 people having complete denture, who were over 65 years and resided in Daejeon and South Chungcheong Province, from March 5 to 31, 2009. Results : 1. As for satisfaction in areas of complete denture by the number of brushing, chewing, pronunciation, and aesthetic functions were all high in over three times of brushing, showing statistically significant differences in satisfaction with chewing (p=0.1825) and aesthetic (p=0.005) functions. 2. As for satisfaction in areas of complete denture by the period of using denture, chewing, pronunciation, and aesthetic functions were all high in less than 7 years, showing statistically significant differences in satisfaction with chewing (p=0.030) and aesthetic (p=0.000) functions. 3. As for satisfaction in areas of complete denture by the subjective oral health state, the better subjective oral health state, the higher satisfaction with chewing, pronunciation, and aesthetic functions, showing statistically significant differences (p=0.000). 4. As for relevance between the subjective oral health state and satisfaction with complete denture, there was 30.1% explanation power in satisfaction with complete denture by the subjective health state. Conclusions : As for satisfaction with complete denture among the elderly, more than three times of brushing and less than 7 years of using denture were related to higher satisfaction; the better subjective oral health state, the higher satisfaction with chewing, pronunciation, and aesthetic functions. Therefore, it is necessary to have the elderly with complete denture receive education about oral hygienic care and perform the care at the same time.

• The Journal of Advanced Prosthodontics
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• v.13 no.2
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• pp.100-106
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• 2021

PURPOSE. The purpose of this study is to compare the antibacterial activity of currently purchasable denture cleansers against Candida albicans. Materials and methods: This study used tablet-type denture cleansers, PolidentⓇ, CoolingdentⓇ and FittydentⓇ, along with liquid denture cleansers, HexamedineⓇ, ListerineⓇ and Apple vinegarⓇ. The antibacterial activities of denture cleansers were evaluated based on the number of C. albicans and concentrations of the denture cleansers. Results. In the 0.5 × 106 cfu/㎖ culture medium, the C. albicans' death rate of PolidentⓇ was significantly lower than those of FittydentⓇ, HexamedineⓇ, ListerineⓇ, and Apple vinegarⓇ(P<.05). In the 0.5 × 107 cfu/, the C. albicans' death rates of PolidentⓇ and CoolingdentⓇ were significantly lower than those of FittydentⓇ, HexamedineⓇ, ListerineⓇ and Apple vinegarⓇ(P<.05). The C. albicans' death rates of PolidentⓇ and CoolingdentⓇ were significantly decreased at 0.02 g and 0.01 g. The C. albicans' death rate of FittydentⓇ was significantly decreased at 0.005 g (P<.05). The C. albicans' death rate of HexamedineⓇ was significantly decreased at 1/16 dilution. The C. albicans' death rate of ListerineⓇ was decreased at 1/8 dilution, and the antibacterial activity of Apple vinegarⓇ was decreased at 1/4 dilution (P<.05). Conclusion. As the number of C. albicans increased, the antibacterial activities of the denture cleansers decrease. In the tablet-type denture cleanser, all denture cleansers showed 100% C. albicans' death rate when used at a dose of 1 tablet. One denture cleanser showed the same antibacterial effect with only 1/3 of a tablet. In the liquid type denture cleanser, the level of dilution required was different for each denture cleanser.

• The Journal of Korean Academy of Prosthodontics
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• v.60 no.3
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• pp.239-245
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• 2022

Purpose. The purpose of this study was to analyze the frequency and duration of adjustments after delivery of complete denture according to age, sex, arch with complete denture, insurance coverage of a denture, type of antagonist, the experience of wearing denture, the period of edentulism, and the type of denture base. Materials and methods. For 5 years, medical records of patients aged 65 or older who had treated full dentures were assessed for the frequency and duration of follow-up visits after complete denture delivery. Statistical analysis was performed at the 5% level of significance to analyze the correlation between the frequency and duration of follow-up according to sex, insurance coverage, arch with the complete denture, type of denture base, type of antagonist, experience of wearing a denture, age, and healing period. Results. 247 complete dentures were included in this study. The median frequency of follow-up visits was 3, and the median duration of follow-up was 36 days. Lower dentures had significantly higher frequency of follow-up visits than upper dentures (P = .036). According to the type of antagonist, dentures opposing a complete denture had a significantly higher frequency of follow-up visits than dentures opposing a removable partial denture (P = .016). There was no statistically significant difference in the frequency and duration of adjustments after delivery of complete denture by age, sex, insurance coverage, healing period, the experience of wearing a denture, and type of denture base. Conclusion. Within the limitations of the present study, lower complete dentures or dentures opposing a complete denture had an increased frequency of follow-up visits.

• Journal of the Korea Convergence Society
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• v.8 no.12
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• pp.159-165
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• 2017

This study was accomplished to get to know the actual condition of denture management in understanding of denture management education relate to the post denture management of elderly, by meeting directly, among elderly people (more than 65 years old) wearing dentures, using structured guestionnaire from 15th Oct. to 15th Dec. 2016 in Daegu Metropolitan City. As a result, there was a significant difference in understanding of denture management education according to age, education level, cost of denture, general health condition, position of denture, period of wearing upper and bottom denture, frequencies of dental treatment and degree of halitosis(p<0.05). As a result, it is considered that continuing denture management education by studying characteristics of the elderly is needed and standardized denture management manual has to be made.

• The Journal of Korean Academy of Prosthodontics
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• v.34 no.2
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• pp.363-372
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• 1996

A common site of fracture in maxillary complete denture is on the anteroposterior midline that coincides with the notch for relief of the labial frenum. Various approaches to reduce the incidence of this type of fracture have been suggested. The most widely used technique is the reinforcement of acrylic resin denture base with several solid metal forms. But few comparative studies on the efficacy of metal reinforcements have been reported. This study was conducted to compare reinforcing effects of commonly available metal reinforcements, which include wire, metal mesh embedded in the denture base and metal plate affixed to the impression surface of denture base by silicoating technique. This was load on the posterior. The strain gauges were oriented perpendicular to the anteroposterior midline of maxillary polished denture surface at one labial and the four palatal sites Non-renforced denture was used as control. The results were as follows : 1. In the non-reinforced denture group, only tensile strains on the palatal polished surface were observed. The tensile strains decreased in the order of incisive papilla, posterior denture border area, mid palatal area and rugae area. Compressive strain was observed on the labial polished surface. 2. As compared with the non-reinforced denture group, the metal plate or the metal mesh reinforced denture groups showed reduced palatal tensile strains,and the metal mesh reinforcement had a better reinforcing effect than the metal plate. But both reinforced denture groups showed no difference in the amount of compressive strain on the labial polished surface when compared to the non-reinforced denture group. 3. The metal wire positioned just above the labial notch decreased the compressive strain on the labial polished surface. But the presence of metal wires in the palatal polished surface caused increase in tensile strains in the area.

• Journal of Technologic Dentistry
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• v.37 no.1
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• pp.17-21
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• 2015

Purpose: In this study, Spreadability of denture adhesive in accordance with the saturation level of saliva, respectively, by using the resin plate and the glass was measured thickness and Spreadability. Methods: Examine the spreadability of denture adhesive in accordance with the saturation level of saliva, respectively, by using the resin plate and the glass was measured thickness and Spreadability. Also, by measuring the adhesive strength according to the amount of saliva, and the edentulous patients using denture adhesive and dry mouth patients attempt to provide clinical information of the denture adhesive. Therefore, by using the relatively low shrinkage cold curing resin, after fabricating specimen of plate form, for 7 days, it was immersed in water. Results: For the control group only denture adhesive, an artificial saliva for the experimental group were injected in $0.1m{\ell}$, $0.2m{\ell}$ and $0.3m{\ell}$ of the denture adhesive on the surface, experimental results of the investigation of the 10 times the tensile bond strength of the specimens in each group was obtained the following results. Conclusion: As the time to pressure increase in the same amount of saliva was found that the amount coming out of the denture adhesive, as the amount of saliva in the same pressure increase coming out of many denture adhesives. And the greater the pressure came out a lot of denture adhesives. Spreadability in measuring saliva contact with $0.1m{\ell}$ and $2m{\ell}$ and $3m{\ell}$ group pressured the diameter of the circular was the denture adhesive is small when compared to the group without adding the pressure of 2kg and 3kg put the saliva. The size of the circle is the same amount of saliva denture adhesive spread more pressure showed a greater increase.

• The Journal of Advanced Prosthodontics
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• v.4 no.1
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• pp.24-29
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• 2012

PURPOSE. To compare the effect of sodium hypochlorite and microwave disinfection on the dimensional stability of denture bases without and with relining. MATERIALS AND METHODS. A brass die was prepared by simulating an edentulous maxillary arch. It was used to fabricate 1.5 mm and 3 mm of thickness denture bases (n = 40). The 1.5 mm of thickness-specimens (n = 20) were relined with 1.5 mm of autopolymerizing relining resin. Five holes were prepared over crest of ridge of brass die with intimately fitting stainless steel pins which were transferred to the intaglio surface of specimens during fabrication of denture bases. For calculation of dimensional changes in denture bases, differences between the baseline area before and after disinfection of the specimens were used. The denture bases without and with relining were divided into 2 groups (each n =20). Data were analyzed using student paired 't'and unpaired 't'test. RESULTS. Microwave disinfection produces significant shrinkage in both denture bases without relining (t =17.16; P<.001) and with relining (t = 14.9; P<.001). Denture bases without relining showed more shrinkage when compared with relined denture bases after microwave disinfection (t = 6.09; P<.001). The changes in dimensional stability after sodium hypochlorite disinfection were not significant for both denture bases without relining (t = 2.19; P=.056) and denture bases with relining (t = 2.17; P=.058). CONCLUSION. Microwave disinfection leads to increased shrinkage of denture bases without and with relining. Chemical disinfection with sodium hypochlorite seems to be a safer method of disinfection with regards to physical properties such as changes in dimensional stability.

• The Journal of Korean Academy of Prosthodontics
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• v.37 no.2
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• pp.185-199
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• 1999

This study was peformed to investigate the distribution and magnitude of stress at supporting tissue of abutment teeth and residual ridge tissue with remaining unilateral posterior teeth. Four types of removable partial dentures that included clasp retained removable partial denture, attachment retained removable partial denture, telescopic removable partial denture, and swing-lock partial denture were designed, and strain gauge was used for stress analysis. Each prosthesis was subjected to simulated vertical and oblique load. The following conclusions were drawn from this study. 1. The clasp retained removable partial denture generally distributed simulated vertical force more evenly to the supporting structure. 2. The stress at buccal side of 1st premolar was the lowest in swing-lock partial denture and that was highest in attchment retained removable partial denture. The stress at lingual side of 1st premolar was the lowest in telescopic partial denture. 3. In clasp retained removable partial denture, stress was lower at load site and ridge crest at mid-line, but it was higher at 1st premolar area on vertical load. 4. In attachment removable partial denture, stresses at buccal side of 1st premolar. lingual side of 1st premolar on vertical load, and ridge crest at midline on oblique load were higher. 5. In telescopic removable partial denture, stress at lingual side of 1st premolar was the least in all removable partial dentures, but the stress at load site was higher. 6. In swing-lock removable partial denture, stress at buccal side of 1st premolar was the lowest, and stresses at load site and distal end of residual ridge crest were higher.