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Vertical Play of Straight Wire Appliance Aids Correction of Gummy Smile and Bimaxillary Incisor Proclination with Mini Implant Anchorage

Mohd Zambri M Makhbul ; Wan Nurazreena Wan Hassan

Annals of Dentistry.2018;25(1):1-10.

This report aimed to describe an effective biomechanics to control the upper incisors inclination during the correction of gummy smile with bimaxillary proclinations. A 14-year-old female presented with a Class II division I incisor relationship complicated with bimaxillary proclination on a Class 2 skeletal base. The lips were incompetent, showing 7 mm of upper incisors at rest and 5mm maxillary gingival display on smiling with normal upper lip length. Treatment involved extraction of all first permanent premolars followed by upper and lower fixed appliances. Intrusion of the upper incisors with controlled labial crown torque was accomplished with mini-implant anchorage placed bilaterally on the infrazygomatic crests with the retraction forces above the centre of resistance using 0.019x0.025-in stainless steel archwire in 0.022-in slot. The 0.019x0.025-in stainless steel archwire in 0.022-in slot provided the vertical play to favour lingual crown tipping despite having forces above the centre of resistance for concurrent anterior segment intrusion.

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Oral Health Behaviours and Preventive Dental Care Experiences Among Patients with Special Health Care Needs at Special Care Dentistry Clinic, University of Malaya

Tay MJ ; Chow CY ; Ab-Murat N ; Maryani Mohamed Rohani

Annals of Dentistry.2018;25(1):23-30.

To assess the oral health behaviour and preventive dental care experiences of patients with special health care needs (SHCN) who attended the Special Care Dental (SCD) Clinic at University of Malaya. Data were collected from 31 patients using a self-administered questionnaire which consisted of questions pertaining to their oral health behaviours and experiences on receiving preventive dental care (PDC). For patients who were unable to answer due to existing health conditions, parents or primary caregivers were approached as proxy. Descriptive analysis was conducted and reported based on percentages to identify the oral health behaviour and PDC of the individuals. Majority brushed their teeth at least once a day (84%), used fluoridated toothpaste (87%) and oral hygiene aids (58%). However, almost half of them (48%) required assistance from parents or caregivers during tooth brushing and consumed sugary snacks in between meals (58%). About 80% had received PDC where the type of care received was mainly oral hygiene advice (77%). Slightly more than 80% preferred the one-to-one demonstration method during PDC. Most gave positive evaluation on their PDC experience especially on items pertaining to the dentist’s attitude. Whilst most of the SHCN patients in this study had positive perception on the PDC that they received and practised good brushing behaviour, their dietary habits need to be improved. Thus, regular preventive dental visit amongst SHCN patients is important for appropriate and comprehensive dental care in maintaining oral health..

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Beginning of a New Era for the Annals of Dentistry University of Malaya (Ann Dent UM)

Zainal Ariff Abdul Rahman

Annals of Dentistry.2018;25(2):31-31.

Since 1994 Ann Dent UM is publishing scholarly contributions in the broader field of Dentistry. Likewise the faculty of Dentistry at Universiti Malay, as the pioneer school of Dentistry in Malaysia, it’s official journal has also pioneered the milestone of dental journal publications in the country. Over the years, the journey for the journal has not always been as smooth as it could have been. Nevertheless 25 years have been a long time to be in existence in the world of scientific peer-reviewed publications.

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Influence of Scaler Tip Design on Intensity of Pain and Discomfort During Scaling

Mohamad Hanis Mat Nazri ; Mohd Fakhrul Ridwan Mohd Azmi ; Nor Adinar Baharuddin ; Roslan Saub ; Nur Ayman Abdul Hayei ; Rathna Devi Vaithilingam

Annals of Dentistry.2018;25(2):36-42.

To evaluate patient’s subjective preferences to scaling with narrow probe-shaped EMS Perio Slim PS tips compared to conventional tip based on pain perception using the Visual Analogue Scale (VAS). Ten patients were treated using a piezoelectric ultrasonic device (EMS) and two different scaler tips representing a conventional scaler tip and a Perio Slim PS scaler tip in a split-mouth design. Pain was evaluated after 2 minutes scaling using Visual Analogue Scale (VAS). Data obtained was analysed by SPSS version 19.0 using Wilcoxon test. Pain assessment after treatment confirmed by the Visual Analogue Scale (VAS) showed that the Perio Slim PS scaler tip (maximum pain score: 4, minimum: 2) caused less pain than the conventional scaler tip (maximum: 8, minimum: 3) (p-value = 0.007). Using Perio Slim PS scaler tip caused less pain and discomfort during scaling treatment when compared with conventional scaler tip. 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 its application in different clinical setting. To study the history 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 the dental clinician in choosing the best material of choice. The authors have summarized the history, development and classification of different type of acrylic resins used in fabricating denture and processing methods based on all the 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 material and the processing method is crucial to ensure the best outcome for prosthodontic treatment. Hence, upholding the patients’ best interest and improving their quality of life.

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Autism Spectrum Disorder: Patients’ Oral Health Behaviors and Barriers in Oral Care from Parents’ Perspectives

Maryani Mohamed Rohani ; Nur Fatin Baharozaman ; Nur Syadiyah Khalid ; Norintan Ab-Murat

Annals of Dentistry.2018;25(2):43-52.

To assess the oral health behaviors of children with Autism Spectrum Disorder (ASD) and explore attitudes and barriers in providing oral care by their parents. A cross-sectional, mixed method study design, which comprised of quantitative and qualitative sections was conducted. The quantitative part assessed the oral health behavior through a parent-proxy report questionnaire whilst the qualitative part assessed parents’ overall perspective on maintenance of oral health in children with ASD through an in-depth interview using semi-structured questions. All children below the age of 16 who have been clinically diagnosed with ASD and registered at the Pediatric Dental Clinic were included. The sample consisted of twenty children with ASD. Most of the sample were male and between 5-8 years old. Majority had good oral health behaviors but some exhibited self-injurious behaviors that may affect oral health. Severe characteristics of ASD, co-morbid conditions and incompetent health professionals were reported as barriers in oral care by parents of these children. Despite having good oral health behaviors, several barriers and challenges were expressed by these parents with ASD when providing home oral care or bringing them for dental appointment. Continuous support for parents with ASD child by dental professionals is essential to help overcome the real challenges and barriers in providing oral care among these parents.

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Aesthetic Rehabilitation with Nano- Ceramic Composite Material - Case Reports

Noor Hayati Azami ; Nora Sakina Mohd Noor ; Wei Pin Ngan ; Jovian Tze Yu Then ; Yeong Chee Teoh

Annals of Dentistry.2018;25(2):53-57.

Aesthetic or cosmetic dentistry is one of the main areas of dental practice. Increasing demands of patients for aesthetics has resulted in the development of several techniques for restoring the anterior teeth. Composite resin restorations have become an integral part of contemporary restorative dentistry and can be called “star of minimal invasion” due to its conservative concepts. The direct composite veneering allows restoring the tooth in a natural way and preservation of sound tooth structure when compared to indirect restorations. Before placement of direct composite veneers, a proper diagnosis, available treatment options, cost of treatment, patient’s expectations and duration of treatment should be taken into consideration. This article presents three case reports of aesthetic rehabilitation of anterior teeth using direct composite with satisfactory outcome that mimic the natural dentition.

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A Narrative Review of Different Types and Processing Methods of Acrylic Denture Base Material

Lee Wei May ; Lim Ghee Seong

Annals of Dentistry.2018;25(2):58-67.

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 its application in different clinical setting. To study the history 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 the dental clinician in choosing the best material of choice. The authors have summarized the history, development and classification of different types of acrylic resins used in fabricating denture and processing methods based on all the 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 material and the processing method is crucial to ensure the best outcome for prosthodontic treatment. Hence, upholding the patients’ best interest and improving their quality of life.

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Shear Bond Strength and Failure Mode of Different Dental Adhesive Systems

Azizah Murtuzah Shekh ; Noor Azlin Yahya

Annals of Dentistry.2019;26(1):1-7.

The study aimed to evaluate the shear bond strength (SBS) and to analyse the failure mode at the resindentine interface of different dental adhesive systems. A total of 75 sound premolar teeth were selected and randomly assigned into five different adhesive groups (n=15): OptiBond Solo (OBS, total-etch), OptiBond Versa (OBV, two-bottles, self-etch), Adhe SE Ivoclar (ADHE, two-bottles, self-etch), G-Bond (GB, one-bottle, selfetch), and OptiBond All in One (OBO, one-bottle, self-etch). The occlusal surface of each tooth was flattened and composite resin cylinder (4x2 mm) was built up on the flat dentine surface using a custom made mould. The specimens were then subjected to 500 thermal cycles between 5 °C and 55 °C and dwell time of 20s. The SBS test was conducted using a universal testing machine at a crosshead speed of 0.5 mm/min. Data were analyzed using one-way ANOVA and Dunnett T3 Test. Failure mode was determined as adhesive, cohesive or mixed mode using a stereomicroscope and the data were analyzed using Fisher's exact test. The total-etch (OBS) had significantly higher value of SBS than the two self-etch (ADHE and GB) adhesive systems. Within the self-etch systems, OBV showed significantly higher SBS value compared to ADHE and GB. There were no statistically significant differences between types of failure mode (p > 0.05) and adhesive group. It can be concluded that the different compositions in the self-etch adhesive materials may contribute to the different SBS value. The failure modes detected within all tested groups did not show clinically important differences

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Assessment of clinical and radiographic status of crowned teeth

Nurul Farahah Bahari ; , Nur Iffah Izzaty Jama ; Jacob John

Annals of Dentistry.2019;26(1):8-14.

This cross sectional study investigated the clinical and radiographic status of crowned teeth with and without root canal treatment. The study used secondary data from records of patients who received crown treatment at the Faculty of Dentistry, University of Malaya before 2015 and walk-in patients attending the primary care clinic between July - December 2016. The inclusion criterion was crown fitted for more than 12 months. Once identified, the patients were assessed for clinical and radiographic status. Data were entered into and analysed using SPSS Version 20 software. A total of 66 crowns [35 root canal treated (RCT) and 31 non-root canal treated (n-RCT)] were identified. Chi-square test was carried out to determine the health of crowned teeth and for its longevity in the oral cavity. There were 43 crowns (46.5% RCT; 53.5% n-RCT) with plaque accumulation, 15 (66.7% RCT; 33.3% n-RCT) with gingival swelling/recession, 17 (46.5% RCT; 53.5% n-RCT) with widening of the periodontal ligament, 13 (53.8% RCT; 46.2% n-RCT) with bone loss and 5 (60% RCT; 40% n-RCT) crowns with periapical lesion. There was no statistically significant difference except for poorer alveolar bone condition for crowns that have been in the mouth for >10 years. Based on the study, no significant adverse pulpal involvement between crown with RCT and crown without RCT was observed.

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An approach to risk isolation for relatively low-incidence conditions: An Australian national model of oral cellulitis.

Abed Aktam Anjrini ; Marc Tennant ; Estie Kruger

Annals of Dentistry.2019;26(1):15-21.

The purpose of this study was to develop a risk indicator applicable on a national level, to isolate at relatively highresolution, regions where oral cellulitis risk is high. The method used ten years of Western Australian (1999 to 2008) hospitalisation data, and applying the admission risks gleaned from this database (poverty, socioeconomics, age and Indigenous status) to model across Australia (at SA1 level) the risk profile. Five levels of oral cellulitis risk (low to very high) were mapped to each of the 54,000 SA1s that makeup Australia. Cumulative percentage analysis was used to study the effect of distance from capital city of each state on the number of population at high risk. Highest risk category (category 5) SA1s were not equally distributed amongst States, with the Northern Territory having 12.2% of its population (26011) belonging to category 5 (very high risk). The majority of that population (87.8%) live more than 100km away from the capital city, Darwin. A general trend amongst Australian capital cities was the low number of population at high risk within 5 km from General Post Office (GPO)

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