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Fulltext Periodontal supportive care: aesthetic and functional restoration with acrylic gingival veneer

Lim, Ghee Seong

Ann Dent, 2016;23(2):31-35.
MyJurnal

This case involved periodontal supportive care after non-surgical management of localized, severe chronic
periodontitis (possibly with a history of aggressive periodontitis) and periodontal abscess. This included
maintaining the current periodontal health, and rehabilitation of patient’s oral function and aesthetic concern
using simple, economical and reversible direct restorations without further damaging the patient’s dentition
for example composite resin as splint. Besides that, to address the patient’s complaint of unsightly gaps in
between the teeth, an acrylic gingival prosthesis with denture tooth incorporated was constructed.
Fulltext A narrative review of different types and processing methods of acrylic denture base material

Lee, Wei May, Lim, Ghee Seong

Ann Dent, 2018;25(2):58-68.
MyJurnal

Acrylic resin is commonly used to fabricate removable prostheses due to its adequate physical, mechanical
properties and cost effectiveness. There has been continuous development of the materials to improve their
properties and to widen their applications in different clinical settings. This study aimed to provide a
historical development of the acrylic resin and elaborate on the properties of different types and the
processing methods of acrylic resins used to fabricate denture base which are commercially available in the
market. This would help dental clinicians to choose the best material of choice in the market. The authors
have summarized the history, development and classification of different types of acrylic resins used in
fabricating dentures and processing methods based on published research available on this topic using
published materials available in the Dental Library, University of Malaya and the database (Science Direct,
PubMed). Every type of acrylic denture base material has its pros and cons. Therefore, careful selection of
the material and processing method is crucial to ensure patients are receiving the best outcome in
prosthodontic treatment hence upholding the patients’ best interest and improving their quality of life.
Fulltext Current approaches in managing dental anxiety: A narrative view

Kweh, Ting Jing, Lim, Ghee Seong

JUMMEC, 2020;23(2):55-60.
MyJurnal

Introduction: Dental anxiety is a common problem faced by dental practitioners worldwide. Generally, the management of dental anxiety can be classified as pharmacological and non-pharmacological approaches, in multiple studies and reports available on this subject.

Aims and objectives: This paper will provide a general overview of the pharmacological and nonpharmacological strategies in the management of dental anxiety, supported by dental literature. This would help dental practitioners understand the benefits and limitations of the different methods of treating their anxious patients.

Methodology: This is a narrative review and a summary of the different approaches and methods available in the management of dental anxiety. Relevant articles were searched from the online databases of PubMed, ScienceDirect, and Google Scholar, and the keywords used to identify the papers were ‘Dental Anxiety’, ‘Pharmacological’, and ‘Non-pharmacological’.

Conclusion: Appropriate management of dental anxiety is crucial to ensure a successful dental procedure. The choice of the anxiety management must be based on the complete understanding of the particular patient, identifying the source of anxiety, and working hand-in-hand with the patient for better oral health care.
Quantitative Assessment of Root Development after Regenerative Endodontic Therapy: A Systematic Review and Meta-Analysis

Ong TK, Lim GS, Singh M, Fial AV

J Endod, 2020 Dec;46(12):1856-1866.e2.
PMID: 32827507 DOI: 10.1016/j.joen.2020.08.016

INTRODUCTION: The purposes of this review were to appraise the level of evidence of the existing regenerative endodontic therapy (RET) publications, perform a meta-analysis on the survival and healing rates of necrotic immature permanent teeth treated with RET, and run a meta-analysis on the quantitative assessment of the root development of those teeth.
METHODS: Electronic searches were performed in Web of Science, PubMed, CINAHL (Cumulative Index to Nursing and Allied Health Literature), and Cochrane Library databases. Two authors independently screened the titles and abstracts for eligibility. The analyses were performed on the clinical outcomes (ie, survival, healing, and root development) of the procedure.
RESULTS: Eleven articles were included in the qualitative and quantitative syntheses. Three studies were randomized controlled trials, 6 were prospective cohort studies, and 2 were retrospective cohort studies. The pooled survival and healing rates were 97.3% and 93.0%, respectively. The pooled rates of root lengthening, root thickening, and apical closure were 77.3%, 90.6%, and 79.1%, respectively. However, if 20% radiographic changes were used as a cutoff point, there were only 16.1% root lengthening and 39.8% root thickening.
CONCLUSIONS: Within the limitations of the present study, it can be concluded that RET yielded high survival and healing rates with a good root development rate. However, clinical meaningful root development after RET was unpredictable.
Fulltext Synthetic Material for Bone, Periodontal, and Dental Tissue Regeneration: Where Are We Now, and Where Are We Heading Next?

Cheah CW, Al-Namnam NM, Lau MN, Lim GS, Raman R, Fairbairn P, et al.

Materials (Basel), 2021 Oct 15;14(20).
PMID: 34683712 DOI: 10.3390/ma14206123

Alloplasts are synthetic, inorganic, biocompatible bone substitutes that function as defect fillers to repair skeletal defects. The acceptance of these substitutes by host tissues is determined by the pore diameter and the porosity and inter-connectivity. This narrative review appraises recent developments, characterization, and biological performance of different synthetic materials for bone, periodontal, and dental tissue regeneration. They include calcium phosphate cements and their variants β-tricalcium phosphate (β-TCP) ceramics and biphasic calcium phosphates (hydroxyapatite (HA) and β-TCP ceramics), calcium sulfate, bioactive glasses and polymer-based bone substitutes which include variants of polycaprolactone. In summary, the search for synthetic bone substitutes remains elusive with calcium compounds providing the best synthetic substitute. The combination of calcium sulphate and β-TCP provides improved handling of the materials, dispensing with the need for a traditional membrane in guided bone regeneration. Evidence is supportive of improved angiogenesis at the recipient sites. One such product, (EthOss® Regeneration, Silesden, UK) has won numerous awards internationally as a commercial success. Bioglasses and polymers, which have been used as medical devices, are still in the experimental stage for dental application. Polycaprolactone-TCP, one of the products in this category is currently undergoing further randomized clinical trials as a 3D socket preservation filler. These aforementioned products may have vast potential for substituting human/animal-based bone grafts.
Fulltext Antifungal effects of eugenol on Candida albicans adherence to denture polymers

Zanul Abidin Z, Mohd Salleh N, Himratul-Aznita WH, Ahmad SF, Lim GS, Raja Mohd N, et al.

PeerJ, 2023;11:e15750.
PMID: 37601266 DOI: 10.7717/peerj.15750

BACKGROUND: The study's objective is to assess the adherence of C. albicans in different types of denture polymers and the effectiveness of eugenol and commercialized denture cleansers in the removal of C. albicans. Three types of denture base polymers (Lucitone® 199 (High-Impact PMMA), Impact® (conventional PMMA) and Eclipse® (UDMA)) and two hard denture reline materials (Kooliner® and Tokuyama® Rebase II Fast) were used in this study.
METHODS: Three hundred samples were prepared (6 × 2 mm disc shape) and divided into five groups of denture polymers (n = 60) and further subjected into five treatment groups (Polident®, Steradent, distilled water, eugenol 5-minutes, and eugenol 10-min). Three samples were extracted from each treatment group for baseline data (n = 12). Baseline data were used to calculate the initial number of C. albicans adherence. A 0.5 ml immersion solution from each specimen was cultured on YPD agar and incubated for 48 h at 37 °C. Visible colonies were counted using a colony counter machine (ROCKER Galaxy 230).
RESULTS: The result showed that the denture base polymer significantly affected the initial adherence (p = 0.007). The removal of C. albicans was also considerably affected by the denture base polymers and denture cleansers (p