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Fulltext Prevalence and pattern of third molars impaction: A retrospective radiographic study

Shaari RB, Awang Nawi MA, Khaleel AK, AlRifai AS

J Adv Pharm Technol Res, 2023;14(1):46-50.
PMID: 36950463 DOI: 10.4103/japtr.japtr_489_22

Third molar impaction is considered a prevalent issue. The research aimed to study the pervasiveness and pattern of impaction in Karbala/Iraqi population. Orthopantomograms were studied regarding its angulation, impaction depth, and correlation with ramus. The outcomes manifested that the prevalence of 3rd impacted molars was 34.71%, with the proportion of male to female as 0.83:1. Impacted mandibular 3rd molars were significantly encountered. The prevalence of vertical angulation, mesioangular, horizontal, and inverted were significantly associated with the impacted mandibular 3rd molars (P < 0.05). However, the prevalence of distoangular and bucco/lingual was significantly associated (P < 0.05) with the upper impacted 3rd molars. Level C of impaction was significantly (P < 0.05) the most typical level in the maxilla impacted the 3rd molar, and level A and level B of impaction were significantly (P < 0.05) the most prevalent level correlated with the mandibular 3rd molar impaction. Class II was significantly (P < 0.05) the frequently occurring condition subsequent to Classes III and I. In conclusion, the impaction of 3rd molars was significantly predominant in females and lower jaw. The vertical angulation, level C of impaction associated with maxillary 3rd molars and levels A and B of impaction related with mandibular 3rd molars, and Class II are the most encountered conditions.
The Effects of Dental Hygiene Instruments on Streptococcus sanguinis Adhesion to Titanium Implant Abutments

Muhamad Nasir N, Taib H, Awang Nawi MA, Hassan A

Cureus, 2024 Aug;16(8):e66605.
PMID: 39258034 DOI: 10.7759/cureus.66605

INTRODUCTION: Maintenance of dental implant with different hygiene methods or instruments may cause a surface alteration. It directly affects bacterial colonization and adhesion on titanium implant surfaces that result in peri-implant diseases. This study aimed to compare the Streptococcus sanguinis (S. sanguinis) adhesion on titanium implant abutments after instrumentation with a rubber cup with pumice and erbium, chromium-doped: yttrium, scandium, gallium, and garnet (Er, Cr: YSGG) laser using scanning electron microscope (SEM) observation and colony-forming unit (CFU) measurement.
METHODS: Twenty-one MegaGen titanium implant abutments were randomly distributed into three groups. Seven abutments were respectively selected for the control/untreated (C) group, while the other two groups were treated with rubber cups with pumice (P) and Er, Cr: YSGG laser (L). All samples were cultured with S. sanguinis for bacterial colonization and adhesion. One sample for each group was selected for SEM observation, while the other samples were prepared for CFU calculation.
RESULTS: For SEM results, at 2,000× magnification, machining marks were intact in the C group, roughened in the L group, and smoothened in the P group. At 5,000× and 10,000× magnifications, moderate colonies of S. sanguinis were revealed in C and L groups, while sparse bacterial colonies were detected in the P group. However, for CFU results, statistical analysis showed no significant value (p>0.05) comparing all three groups.
CONCLUSION: P instrumentation revealed a lesser amount of S. sanguinis adhesion in SEM photographs, but no statistical significance of CFU results was noted for all three groups.
Factors Influencing Tooth Sensitivity: Insights From the Hospital Universiti Sains Malaysia Using Bootstrap-Enhanced Ordinal Regression

Mat Lazin MA, Wan Zainon WN, Humayun A, Madawana AM, Hassan A, Zhang Y, et al.

Cureus, 2024 Jul;16(7):e64641.
PMID: 39149669 DOI: 10.7759/cureus.64641

Introduction Tooth sensitivity, or dentin hypersensitivity (DH), is characterized by sharp, sudden pain in response to stimuli such as cold, heat, sweet, or acidic foods and drinks. In Malaysia, there is limited understanding of the epidemiological aspects of tooth sensitivity, necessitating focused research. The condition results from the exposure of dentinal tubules transmitting stimuli to nerves within the pulp, with contributing factors including gingival recession, enamel erosion, and periodontal disease. This study aims to investigate the factors associated with tooth sensitivity among patients at the Hospital Universiti Sains Malaysia (USM) using advanced statistical methods. Methods This study employed a computational research design to develop an ordinal regression and bootstrap methodology using the RStudio software (Posit PBC, Boston, MA) to analyze secondary data from the Hospital Universiti Sains Malaysia. Six variables were analyzed: tooth wear severity, patient's age, gender, smoking status, alcohol status, and type of toothbrush. The study was conducted in three phases: 1) the development of an ordinal regression model, 2) the development of algorithms for ordinal regression and bootstrap method, and 3) validation using tooth sensitivity data. Results The analysis revealed that the replication with 1000 samples provided the most precise estimates with small standard errors (SE) and consistently significant effects across variables. Tooth sensitivity was influenced by age, toothpaste type, toothbrush type, and brushing frequency. Conclusion The study highlights the importance of considering multiple variables such as age, toothpaste type, toothbrush type, and brushing frequency in understanding tooth sensitivity. The combined ordinal regression and bootstrap technique significantly improved the model's accuracy, providing valuable insights for dental health professionals. These findings underscore the need for specific guidelines on oral hygiene practices to manage and reduce the risk of tooth sensitivity.
Morphometric Analysis of the Dimension and Distance to Anatomical Structures From the Mental Foramen Using Cone Beam Computed Tomography

Alam BF, Yusof A, Ali Shah S, Abdullah JY, Awang Nawi MA

Cureus, 2024 Oct;16(10):e71496.
PMID: 39544581 DOI: 10.7759/cureus.71496

OBJECTIVES: This study aimed to determine the dimensions and differences in distances from several anatomical structures to the mental foramen (MtF) in Pakistani participants using cone beam computed tomography (CBCT).
METHODS: For this cross-sectional study, retrospective CBCT data of Pakistani individuals from both genders were assessed using the Mimics software (Materialise NV, Leuven, Belgium). The participants were selected from the Mahajir and Pukhtoon ethnic groups in Pakistan. The dimensions of the MtF, which included vertical and horizontal diameter and area of foramen, were measured. The distance of the foramen to various anatomical structures was measured, which included the alveolar crest, inferior border of the mandible, and anterior mandible. Data were assessed using SPSS version 28 (IBM Corp., Armonk, NY). Statistical analysis was performed using an independent sample t-test and a paired t-test. P-values greater than 0.05 and 0.001 were considered significant.
RESULTS: Greater measurements had been recorded for the Pukhtoon ethnicity with respect to the vertical, horizontal, and area of the foramen. In relation to the dimensions, males showed larger measurements than females. MtF's distance to the alveolar crest, inferior border of the mandible, and anterior mandible (p < 0.001) was greater in Pukhtoon ethnicity. Males displayed longer measurements.
CONCLUSION: CBCT proved to be a highly accurate and useful tool for the analysis of the dimensions and distances from the MtF in both ethnicities. The Pukhtoon ethnicity exhibited overall greater measurements with respect to the dimensions, highlighting a significant difference between the two ethnicities. Analysis of MtF distance to various landmarks resulted in longer measurements being observed in males and Pukhtoon ethnicity.
Fulltext Association of Vital Pulp Therapy Outcomes with Tooth Type, Arch Location, Treatment Type, and Number of Surfaces Destroyed in Deciduous Teeth: A Retrospective Study

Maqbool M, Noorani TY, Samsudin NA, Awang Nawi MA, Rossi-Fedele G, Karobari MI, et al.

Int J Environ Res Public Health, 2021 07 28;18(15).
PMID: 34360261 DOI: 10.3390/ijerph18157970

There is a paucity of information concerning vital pulp treatment outcomes in the undergraduate teaching setting. This study aimed to determine which type of deciduous molar, arch location, type of vital pulp therapy, and the number of carious surfaces involved had a better prognosis when carried out by undergraduate dental students. The method used was the review of clinical records of 590 patients with 600 deciduous molars, that visited the outpatient undergraduate dental clinics for vital pulp therapy. Statistical analysis used to determine the associations of tooth type, arch location, treatment type, and the number of carious surfaces involved in successful outcomes was logistic regression analysis with significance set at p < 0.05. According to the regression analysis model results, there was a significant association based on tooth type (p < 0.05) and arch location (p = 0.003). In addition, there was a significant association based on the type of treatment performed (p = 0.036). However, there was no significant association in success rates based on the number of carious surfaces involved (p = 0.873). In conclusion, second deciduous molars and maxillary deciduous molars had a better overall prognosis, and indirect pulp therapy was revealed to be more highly associated with successful treatment outcomes in comparison to ferric sulfate pulpotomy in our setting.