Rasika Manori Jayasinghe

Prof. Rasika Manori Jayasinghe

University of Peradeniya, Kandy, Central, Sri Lanka
orcid
Penang International Dental College, Malaysia

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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27 July 2017 in BMC Research Notes
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Journal Article
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RJRasika Manori Jayasinghe
Rasika Manori Jayasinghe
JPJanana Perera
Janana Perera
VJVajira Jayasinghe
Vajira Jayasinghe
ITIndika P. Thilakumara
Indika P. Thilakumara
SRSumudu Rasnayaka
Sumudu Rasnayaka
SKSanjeewa Kularatna
Sanjeewa Kularatna
Our objective was to assess awareness, attitudes, need and demand on replacement of missing teeth according to edentulous space, age, gender, ethnicity, educational level and socio-economical status of the patient. 76.2% of the study group was opined that the missing teeth should be replaced by prosthetic means. Majority were keen in getting them replaced mainly for the comfort in mastication. Although 77.9 and 32.9% were aware of the removable prostheses and implants respectively, only 25.2% knew about tooth supported bridges as an option of replacement of missing teeth. Participants’ awareness on tooth and implant supported prostheses is at a higher level. Participants’ opinion on need of regular dental visit was statistically significant when gender, ethnicity and education level were considered. The highest demand for replacement of missing teeth was observed in Kennedy class I and II situations in both upper and lower arches. Demand for fixed prostheses was significantly highest in Kennedy class II in upper and lower arches. In conclusion, although removable prosthodontic options are known to most of the patients, their awareness on tooth and implant supported prostheses is also at a higher level. The highest demand for replacement of missing teeth is by patients with Kennedy class I and II situations whereas Kennedy class II being the category with highest demand for fixed prostheses. We recommend that the location of missing teeth to be considered as a priority when educating patients on the most appropriate prosthetic treatment options. Dentists’ involvement in educating patients on prosthetic options needs to be improved.

31 May 2023 in F1000Research
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Journal Article
Open access
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PKPragati Kaurani
Pragati Kaurani
AHAmit D Hindocha
Amit D Hindocha
RJRasika Manori Jayasinghe
Rasika Manori Jayasinghe
UPUmesh Y Pai
Umesh Y Pai
KAVITA BatraKAVITA Batra
KAVITA Batra
CPCarrie Price
Carrie Price
Background: Polymethyl Methacrylate (PMMA) denture-base resins have poor surface properties that facilitates microbial adhesion causing denture stomatitis. This systematic review aims to evaluate the effect of different sizes and percentages of titanium dioxide nanoparticles (TiO2NP) on the antimicrobial property, surface roughness and surface hardness of PMMA denture base resin. Methods: A systematic search of English peer-reviewed articles, clinical trial registries, grey literature databases and other online sources was performed using the PRISMA-S Guidelines for In-Vivo and In-Vitro studies. Qualitative data synthesis was performed to analyse sample dimensions, acrylic used, treatments of nanoparticles, methods used for testing and effect of size and percentage of nanoparticle. Risk of bias assessment was done using modified Cochrane risk of bias tool. Results: Out of 1376 articles, 15 were included. TiO2NP of size less than 30 nm was most frequently used. Both antimicrobial property and surface hardness improved irrespective of the size of the added TiO2NP. Three studies reported increase in the surface roughness with less than 50 nm TiO2NP. 3% TiO2NP was most frequently used. On increasing the percentage, three studies reported an increase in antimicrobial property, while two studies found no change. With TiO2NP greater than or equal to 3%, six studies reported an increase in surface hardness, while two reported increase in surface roughness. Large methodological variations were observed across studies. All studies except one were of moderate quality. Conclusions: On addition of TiO2NP to heat polymerized PMMA, the antimicrobial property and surface hardness improved irrespective of the size of the TiO2NP, however, addition of nanoparticles less than 50 nm increased the surface roughness. Increasing the percentage of TiO2NP increased the surface hardness but did not always increase the antimicrobial property. Addition of 3% TiO2NP provided optimum results with regards to antimicrobial effect and surface hardness, but increase in the surface roughness.

3 December 2019 in Journal of Oral Biology and Craniofacial Research
Verified
Journal Article
Closed access
RJRasika Manori Jayasinghe
Rasika Manori Jayasinghe
PHP.V.K.S. Hettiarachchi
P.V.K.S. Hettiarachchi
MFM.C.N. Fonseka
M.C.N. Fonseka
DND. Nanayakkara
D. Nanayakkara
RJR.D. Jayasighe
R.D. Jayasighe

1 October 2019 in Journal of Oral Biology and Craniofacial Research
Verified
Journal Article
Closed access
MFManil C.N. Fonseka
Manil C.N. Fonseka
PHP.V.KAlani S. Hettiarachchi
P.V.KAlani S. Hettiarachchi
RJRasika Manori Jayasinghe
Rasika Manori Jayasinghe
RJRuwan Jayasinghe
Ruwan Jayasinghe
CNC. Deepthi Nanayakkara
C. Deepthi Nanayakkara

17 July 2020 in International Journal of Dentistry
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Journal Article
Open access
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ITIndika P. Thilakumara
Indika P. Thilakumara
KPKaumudi U. Prathibhani
Kaumudi U. Prathibhani
SRSumudu G. K. Rasnayaka
Sumudu G. K. Rasnayaka
SASachith P. Abeysundara
Sachith P. Abeysundara
RJRasika Manori Jayasinghe
Rasika Manori Jayasinghe
Purpose/Objectives. Development of self-confidence is as important as competency in technical and clinical skills of a dental student. This study assessed the association of the level of confidence in dental students with the level of satisfaction of patients and the clinical outcome in the management of complete denture patients. Materials and Methods. Fifty-seven final-year dental students in the year 2019 and the first edentulous patient managed by them were recruited for the study. A fourteen-item questionnaire was given to the students to assess their level of confidence just before commencement of the treatment. Questionnaire for the patients was used to assess their satisfaction both with the operator and the dentures. Clinical outcome of dentures was assessed using ten criteria. Results. The average confidence level of the students was found to be 2.17 in a 4-point scale. A two-sample test indicated that there is a significant difference in the overall level of confidence between female and male students (p value = 0.004). Moreover, a nonparametric correlation analysis revealed that there is no significant correlation between the overall level of confidence of each student and patient satisfaction regarding student performance, level of satisfaction of patients regarding dentures, and the quality of dentures as assessed by the clinicians (p value = 0.545, 0.877, and 0.801, respectively). Conclusions. Students’ level of confidence in carrying out complete denture procedures is satisfactory. Male students exhibited a better overall level of confidence than female students. However, the level of confidence exhibited by the dental students does not predict patient satisfaction or clinical outcome.

1 June 2024 in BMC Public Health
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Journal Article
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YJYovanthi Anurangi Jayasinghe
Yovanthi Anurangi Jayasinghe
KKKehinde Kazeem Kanmodi
Kehinde Kazeem Kanmodi
RJRasika Manori Jayasinghe
Rasika Manori Jayasinghe
RJRuwan Jayasinghe
Ruwan Jayasinghe
Background: Social media has evolved beyond its conventional purpose of communication and information sharing to become a potent tool for disseminating health and oral health awareness. This study seeks to assess the patterns and related factors of using social media platforms to access health and oral health information among Sri Lankan adults, with special emphasis to promotion of oral health awareness. Methods: In March 2023, individuals aged ≥ 18 years residing in Sri Lanka, who are users of social media participated in this electronic questionnaire-based survey. Statistical analyses of the collected data were done using the SPSS version 21 software, with a p-value of < 0.05 set to determine the level of statistical significance. Results: A total of 421 persons participated in this survey. Majority (68.4%) belonged to the age category of 18 to 30 years, and 55.5% were females. WhatsApp (96.8%) was the most frequently used social media platform across all age groups and both genders. Statistically significant differences were identified between genders in the usage of Telegram, Twitter, and Viber within the 18–30 years age category, with a higher percentage of males using these platforms (p ≤ 0.05). Similar significant differences were observed in the 31–40 years age group for WhatsApp and Telegram (p ≤ 0.05). Among 95.4% of online health information seekers, YouTube (74.9%) was the most popular platform. One-quarter of the respondents preferred social media platforms, and 22.3% preferred websites for obtaining oral health information. Furthermore, 74.9% had positive opinions on obtaining oral health information via social media, while only 17% reported pleasant experiences with social media platforms for oral health promotion. In assessing the reliability of oral health information on social media, 48% relied on the quality of the information. The most preferred source of oral health information was short videos from professionals (43.1%). Additionally, 69.5% reported changes in their oral health behaviours after accessing information through social media. Conclusion: Social media is a viable platform for promoting public oral health awareness in Sri Lankan; hence, workable strategies need to be employed, to further ensure its effective and wider use in a culturally and socioeconomically diverse country like Sri Lanka.