Papers by Nareudee Limpuangthip
The journal of prosthetic dentistry/The Journal of prosthetic dentistry, Jul 1, 2024
BMC oral health, Mar 20, 2024
Background In partial edentulous individuals, a partial removable dental prosthesis (PRDP) is a c... more Background In partial edentulous individuals, a partial removable dental prosthesis (PRDP) is a common dental replacement option to improve oral function and quality of life. However, some patients discontinue using their denture over time. The aim of this study was to determine the prevalence and characteristics of partial edentulous patients who no longer wear their dentures, explore their reasons, and assess their oral health-related quality of life (OHRQoL). Methodology This cross-sectional study, conducted at Chulalongkorn University Dental School from 2013 to 2019, involved patients who received PRDP treatment. They were contacted via phone calls and asked about their denture usage. Eligible participants were patients who had stopped or rarely used their PRDPs. Data on oral status, health insurance, and PRDP variables were collected from hospital records. Telephone interviews were conducted to collect the initial reasons for seeking PRDP treatment, reasons for discontinuation, desire for a new PRDP, and OHRQoL. The Oral Impacts on Daily Performances index was used to assess the OHRQoL. The score was dichotomized into the absence or presence of oral impacts. Chi-square tests and multivariable binary logistic regression were employed to determine the associations between oral impacts and various factors in the participants who discontinued PRDP usage. Results Among the 975 contacted participants, 175 (17.9%) discontinued using their PRDPs. Most of these individuals had at least 20 remaining natural teeth and/or 4 posterior occluding pairs. The primary initial reason for seeking PRDP treatment was often based on a dentist's suggestion. Although many participants reported no impact on OHRQoL and did not express the need for new PRDPs, those experiencing oral impacts were more likely to seek replacements. Conclusions With up to 7 years follow-up duration, individuals with partial edentulism and sufficient remaining functional dentition without oral impacts were more inclined to discontinue PRDP usage. Those with maxillary anterior teeth loss were less likely to discontinue using their PRDP. The primary initial reason for seeking PRDP
Case Reports in Dentistry/Case reports in dentistry, Feb 3, 2024
BMC Oral Health, Dec 8, 2023
Background Despite the implementation of various government policies to retain Thai dentists in p... more Background Despite the implementation of various government policies to retain Thai dentists in public sector, a high turnover rate among early career dentists has persisted for decades. This study aims to explore factors relating to early career dentists' choice of the public sector as their preferred workplace and decisions relating to staying, resigning, or relocating from the workplace after one-year employment. Methods A one-year cross-sectional survey was conducted among Thai early career dentists who began working in 2020 using two sets of online questionnaires. The first survey assessed factors influencing dentists' decision to choose the public sector as their preferred workplace at the beginning of the year. The second survey investigated factors influencing dentists' decision to stay, resign, or relocate from the same workplace at one-year after employment. Descriptive statistics and multivariable binary logistic regression were used for data analysis. Results A total of 198 early career dentists completed the online survey questionnaire at the starting point (December 2020-January 2021), and 186 dentists completed the one-year employment questionnaire. The living environment and provided amenities and facilities were the most influential factors in their decision to choose and remain in the public sector. Conversely, their attitude toward unrelated job descriptions and an increased opportunity to pursue postgraduate studies were the most relevant factors when deciding to relocate to a new workplace. Factors such as delayed authority in bureaucracy, hometown location, and being in relationship status were the most significant contributors to resignation from the public sector. Conclusions The major factors influencing dentists' choice and retention in the public sector include the living environment, supportive supervisors and colleagues, and the availability of opportunities for further postgraduate education. Meanwhile, factors impacting retention after one year of work are related to hometown location and the bureaucracy system. Collaborations among ministries, tailored to each local community's specific requirements, may enhance dentists' retention in public sectors.
BDJ open, Dec 7, 2023
OBJECTIVES: To assess the shear bond strength (SBS) between metal orthodontic brackets and zircon... more OBJECTIVES: To assess the shear bond strength (SBS) between metal orthodontic brackets and zirconia after receiving different mechanical and chemical surface treatments, and different types of resin adhesive. The failure mode of each treatment protocol was also evaluated. MATERIALS AND METHODS: The present in vitro experimental study consisted of six surface treatment protocols with two different resin adhesives. One-hundred and forty-four rectangular-shaped 3 mol% yttrium-stabilized tetragonal zirconia polycrystal blocks were milled, sintered, and embedded in acrylic resin. They were randomly divided into three mechanical (none, air abrasion, and bur grinding) and two chemical surface treatment conditions (no primer and Z-primer). The specimens were divided into two groups according to the resin adhesive received: self-cured (RelyX U200) and light-cured adhesives (Transbond XT). The SBS between the metal bracket and zirconia was tested using a universal testing machine (1-mm/min crosshead speed), and the failure mode was evaluated. Differences in SBS and failure mode were analyzed using Welch ANOVA followed by post-hoc comparison and Fisher's Exact test, respectively. RESULTS: Bur grinding produced the highest SBS, followed by air abrasion. Z-primer application typically provided a higher SBS regardless of resin adhesive used (p < 0.001). Without primer application, RelyX U200 provided a higher SBS than Transbond XT (p < 0.001). After grinding, using Z-primer and RelyX U200 resulted in a higher SBS than no primer and using Transbond XT (p < 0.001). Adhesive failure at the zirconia-adhesive interface occurred only when Transbond XT was applied without bur grinding, and when using Transbond XT after grinding, but no Z-primer application. CONCLUSION: Bur grinding combined with applying an MDP-containing primer and resin adhesive enhances the SBS between zirconia and metal orthodontic brackets.
The Journal of Prosthetic Dentistry
BMC Oral Health
Background Oral hypofunction comprises 7 oral function conditions, including mastication, swallow... more Background Oral hypofunction comprises 7 oral function conditions, including mastication, swallowing, pronouncing, oral hygiene, and oral dryness. However, it remains unresolved whether having oral hypofunction and each individual condition adversely affect general health. This study aimed to investigate the association between oral hypofunction and general health, encompassing physical, psychological, and social dimensions. Methods Oral hypofunction was diagnosed following the criteria proposed by the 2016 Japan Society of Gerodontology, comprising 7 oral function conditions. Oral hypofunction was diagnosed when at least 3 conditions presented. The selected studies eligible for reviewing were based on the PI(E)CO criteria: P (population), adult and older adults; I/E (intervention/exposure), having oral hypofunction by considering overall and individual 7 oral function conditions; C (comparator), not having oral hypofunction; O (outcome), the general health status, encompassing phys...
BDJ open, Apr 29, 2023
OBJECTIVES: To facilitate dental disease screening program in prisoners by testing the diagnostic... more OBJECTIVES: To facilitate dental disease screening program in prisoners by testing the diagnostic accuracy of teledentistry examination in comparison to direct oral examination by a dentist. MATERIALS AND METHODS: This crossover study comprised three phases. Phase I, prisoner health volunteers (PHVs) enrolled teledentistry training for an intraoral camera (IOC) use. Phase II, the PHV used IOC for examining dental diseases of prisoners who reported dental-related problems, and captured symptomatic areas. The PHV and dentist independently determined tentative dental treatment need, comprising dental fillings, scaling, extraction, and surgical removal of impacted tooth. Phase III, another dentist performed direct oral examination of the prisoners who reported problems in phase II and determined dental treatment needs. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated, using direct oral examination by dentist as a true positive. RESULTS: Diagnostic accuracy was determined in 152 prisoners with 215 teeth. Sensitivity, specificity, PPV, and NPV of teledentistry and direct examination between two dentists were above 80%. The lowest sensitivity and specificity of teledentistry examination by the PHV were scaling and surgical removal. CONCLUSIONS: IOC use in teledentistry facilitates dentists in dental diseases screening for prisoners with acceptable diagnostic accuracy in identifying possible treatment needs. However, the imaging obtained from teledentistry is not adequate to accurately identify all dental treatment needs.
Research Square (Research Square), Aug 5, 2022
Objectives To determine the oral health-related quality of life (OHRQoL) of temporomandibular dis... more Objectives To determine the oral health-related quality of life (OHRQoL) of temporomandibular disorder (TMD) patients after occlusal splint treatment, and to investigate the associated factors. Materials and methods This cross-sectional study comprised 227 TMD patients. The dependent variable was OHRQoL determined by telephone interview using the 14-item Oral Health Impact Profile (OHIP-14) questionnaire. The independent variables were collected from dental record, comprising age, sex, treatment duration, clinical diagnosis, clinical parameters, and pain perception. The TMD patients were diagnosed as having masticatory muscle disorders (TMDM), temporomandibular joint (TMJ) disorders (TMDJ), or combined muscle and TMJ disorders (TMDC). Bivariate analyses were performed and multivariable linear regression was used to analyze the factors associated with the OHIP-14 score. Results The bivariate analyses demonstrated higher OHIP-14 scores in being younger, females, having TMDC, and lower mouth opening distance. The multivariable analysis demonstrated the association of higher OHIP-14 scores with being younger and having TMDC. The participants with TMDC demonstrated greater improvement in unassisted mouth opening distance, compared with the other clinical diagnosis groups. Conclusions After TMD treatment, oral health impact problems remained, but with low frequency. Better OHRQoL after TMD treatment was found in older and TMDC patients.
Journal of Oral Rehabilitation
PurposeTo evaluate the impact of occlusal splint plus laser therapy (OS + LT) compared with OS al... more PurposeTo evaluate the impact of occlusal splint plus laser therapy (OS + LT) compared with OS alone on the patient‐reported outcomes and clinical parameters of patients with temporomandibular disorders (TMDs).MethodsTwenty‐three patients with TMDs were randomly assigned to two treatment approaches: OS and OS + LT (multiwave locked system). The two outcomes were clinical parameters (mouth‐opening distances, number of muscles and TMJs with pain) and patient‐reported outcomes (pain score and oral health‐related quality of life [OHRQoL] determined using the 14‐item oral health impact profile [OHIP‐14]). The outcomes were measured at four time points: baseline, 2 weeks, 1 and 3 months after treatment. According to DC/TMD Axis I classification, the participants were diagnosed as having pain only and pain with intraarticular joint disorder. Adjusting for age and sex, the outcome changes were analysed using generalized estimating models at a 5% significance level.ResultsThe pain‐free mouth...
BDJ Open
Objectives To facilitate dental disease screening program in prisoners by testing the diagnostic ... more Objectives To facilitate dental disease screening program in prisoners by testing the diagnostic accuracy of teledentistry examination in comparison to direct oral examination by a dentist. Materials and methods This crossover study comprised three phases. Phase I, prisoner health volunteers (PHVs) enrolled teledentistry training for an intraoral camera (IOC) use. Phase II, the PHV used IOC for examining dental diseases of prisoners who reported dental-related problems, and captured symptomatic areas. The PHV and dentist independently determined tentative dental treatment need, comprising dental fillings, scaling, extraction, and surgical removal of impacted tooth. Phase III, another dentist performed direct oral examination of the prisoners who reported problems in phase II and determined dental treatment needs. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated, using direct oral examination by dentist as a true positive....
BDJ Open
Objectives This study aimed to conduct a cross-cultural translation of the revised oral assessmen... more Objectives This study aimed to conduct a cross-cultural translation of the revised oral assessment guide (ROAG) into Thai language and to modify the tool to increase its validity and reliability. Materials and methods The present study was a cross-sectional design conducted in dental and hospitalized patients, and community-dwelling people. The original English-version of the ROAG was translated into Thai, which was evaluated for validity and reliability. The tool was then revised to develop the modified ROAG for non-dentist (ndROAG) comprising 9 oral assessment categories with a three-level response; healthy, mild, and severe alteration. The criterion validity of the ndROAG was tested in 82 adult and older participants, and 46 non-dentists comprising dental assistants, dental hygienists, community health volunteers, and nurses, using a calibrated dentist as the reference standard. The ndROAG was translated back into an English version. The criterion validity was evaluated using wei...
The Journal of Prosthetic Dentistry
PLOS ONE
Objectives The aim of this study was to assess two patient-based outcomes of complete denture (CD... more Objectives The aim of this study was to assess two patient-based outcomes of complete denture (CD) wearers who continued or discontinued using denture adhesive (DA) after one-month run-in period of DA use. Methods This quasi-experimental study comprised 76 CD wearers. The two patient-based outcomes were oral health-related quality of life and masticatory performance, determined by the Thai-version of oral impacts on daily performances index and multiple sieve method of 20-stroke peanut mastication. Denture retention and stability were evaluated using the CU-modified Kapur criteria to classify the CD into acceptable or unacceptable quality. The outcomes were collected at 3 time points: 1) at baseline (T0), 2) after a 1-month run-in period of DA use (T1), at which time the participants decided whether to continue using DA, and 3) 1-month after continuing or discontinuing using DA (T2). Changes in the percentages of having an oral impact from T0 to T2 were evaluated using the McNemar’s...
European Journal of Dentistry
Objective This article evaluates the effect of multipurpose polishing kit on surface roughness an... more Objective This article evaluates the effect of multipurpose polishing kit on surface roughness and hardness of three computer-aided design/computer-aided manufacturing (CAD/CAM) ceramic materials at different polishing durations. Weight changes of the polishing bur were also determined. Material and Methods Three CAD/CAM ceramic materials were lithium disilicate glass ceramic (IPS e.max CAD), translucent zirconia (VITA YZ), and zirconia-reinforced lithium disilicate ceramic (Celtra Duo). Ceramics were ground with a diamond bur, and polished with the multipurpose polishing kit (Eve Diacera HP), which comprises coarse and fine polishing burs. Surface roughness value (Ra) was measured using a noncontact optical profilometer (n = 10 per group) after grinding and every 15 seconds of coarse and fine polishing until 60 seconds. The complete polishing Ra was compared with the lab as-received specimens and human enamel. Surface morphology was examined using a scanning electron microscope aft...
Journal of Prosthodontic Research
To determine the effect of a dynamic impression lining material (DIL) on the retention and stabil... more To determine the effect of a dynamic impression lining material (DIL) on the retention and stability of mandibular complete dentures (LCD), masticatory performance, and the oral health-related quality of life (OHRQoL) of the patients wearing complete denture (CD) compared with those wearing a denture with conventional hard denture liner (HL). Methods: Twenty-five patients who wore CD with an ill-fitting LCD were randomly assigned to two groups: LCD relined with DIL (Dynamic impression lining material) or HL (Tokuyama ® Rebase II (fast)). Three objective measures (denture retention, stability, and masticatory performance) were measured. The OHRQoL was also measured using the Thai version of oral impacts on daily performance. Outcomes were measured at six time points: baseline, 3 days, 1 week, 1 month, 3 months, and 6 months after relining. Outcome changes were analyzed using a generalized estimating equation, and all models were adjusted for age, mandibular ridge form, and CD age at a 5% significance level. Results: After LCD relining, the frequency and severity of adverse oral impacts significantly decreased. In the DIL group, denture pain occurred on and off over six months, and an ill-fitting denture impacted at one month. In the HL group, denture pain continuously decreased over time. At 3 months, changes in the clinical properties of DIL were observed, including perceived odor. The material also peel-off from the denture base, and plaque accumulation was observed. In contrast, the HL properties remained stable for over 6 months. Conclusion: Although DIL improves denture retention and stability, masticatory performance, and the OHRQoL of the patients who wear CD, oral adverse effects were not eliminated. The clinical properties of DILs changed at 3 months, while the HL remained relatively stable for up to 6 months. (The clinical trial registration number: Thai Clinical Trials Registry (TCTR) number TCTR20210625005.
Heliyon, 2022
The association between oral health and AF as well as the possible mechanisms were reviewed. Peri... more The association between oral health and AF as well as the possible mechanisms were reviewed. Periodontitis, which can cause systemic inflammation, tends to play major role in AF risk. Oral disease prevention and treatment are associated with the decreased occurrence of new-onset AF. Frequent toothbrushing, regular dental scaling and dental checkup could be ones of the oral hygiene protocols to prevent periodontitis. Clinical implications and future perspective are elaborated and summarized.
The objective of this study was to determine the association of complete denture quality, patient... more The objective of this study was to determine the association of complete denture quality, patient's satisfaction, and Oral Health-related Quality of Life (OHRQoL). A total of 126 complete denture wearers was interviewed for the primary outcome, OHRQoL, using Oral Impacts on Daily Performances (OIDP) index. Secondary outcomes were patient's satisfaction and masticatory performance. Denture retention and stability were scored following the conventional and Chulalongkorn University (CU)-modified Kapur criteria. Esthetic-assessment criteria was evaluated from patient's photographs. It was found that limited eating/chewing was the most common problem, and an ill-fitting denture was a primary cause of any reported problems. Unacceptable denture retention and/or stability associated with lower masticatory performance, eating dissatisfaction, and reported oral impact. CU-modified Kapur criteria revealed higher sensitivity in estimating all patient-based outcomes compared to the ...
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Papers by Nareudee Limpuangthip