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Some flexural properties of a nylon denture base polymer

Yunus N, Rashid AA, Azmi LL, Abu-Hassan MI

J Oral Rehabil, 2005 Jan;32(1):65-71.
PMID: 15634304

Nylon denture base material could be a useful alternative to poly (methyl methacrylate) (PMMA) in special circumstances such as patient allergy to the monomer. The aim of this study was to evaluate the flexural properties of a nylon denture base material (Lucitone FRS), a conventional compression-moulded heat-polymerized (Meliodent), a compression-moulded microwave-polymerized (Acron MC) and an injection-moulded microwave-polymerized (Lucitone 199) PMMA polymers. The effect of aldehyde-free, oxygen releasing disinfectant solution (Perform) on these properties was also investigated. The flexural modulus and the flexural strength were assessed with a three-point bending test. Specimens were stored in water at a temperature of 37 degrees C for 30 days. For each material, half of the prepared specimens were randomly selected and immersed in the disinfectant 24 h prior to testing. Results were compared statistically at a confidence level of 95%. The result showed that in both the control and disinfected groups, the flexural modulus of nylon was significantly lower than the three PMMA polymers. The flexural strength of nylon was significantly lower than those of Meliodent and Acron MC but was comparable with Lucitone 199. A 24-h immersion in the disinfecting solution increased the rigidity of nylon denture base material.
Caregivers' perceptions towards oral healthcare services for elders living in Malaysian nursing homes-A qualitative study

Letchumanan D, Mohamad Norpi N, Yusof ZYM, Razak IA, Abu Kasim NH, Abdullah NA, et al.

Gerodontology, 2020 Dec;37(4):332-341.
PMID: 32115787 DOI: 10.1111/ger.12466

OBJECTIVE: To assess the perceptions of caregivers towards oral healthcare services received by elders in Malaysian nursing homes and to identify challenges and suggestions for improvement.
BACKGROUND: Caregivers play an important role in the oral health care of elders in nursing homes.
METHODS: This study employed a qualitative approach using the nominal group technique (NGT) to obtain caregivers' feedback in nursing homes in Malaysia. Data were manually transcribed, summarised into keywords/key phrases, and ranked using weighted scores.
RESULTS: In total, 36 caregivers (21 from government and 15 from private nursing homes) participated in the NGT sessions. Overall, caregivers were satisfied with the low treatment cost, the quality of treatment, and the availability of dental visits to nursing homes. Caregivers were dissatisfied with the frequency of dental visits, long waiting times at government dental clinics, and inadequate denture hygiene education for elders in nursing homes. The challenges faced by caregivers were elders' poor oral health knowledge and attitude and lack of elders' trust of caregivers to look after their oral health. Suggestions for improvement were to increase the frequency of dental visits to nursing homes, provide oral health education to elders and caregivers, and give treatment priority to elders at dental clinics.
CONCLUSION: Despite being satisfied with the basic oral healthcare services received by elders in Malaysian nursing homes, caregivers raised some issues that required further attention. Suggestions for improvement include policy changes in nursing home dental visits and treatment priority for elders at government dental clinics.

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