Displaying publications 41 - 60 of 232 in total

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  1. Razak, A.A.A., Harrison, A., Alani, A.A.
    Ann Dent, 1996;3(1):-.
    MyJurnal
    The effect of filler content and storage conditions such as drying, storing in water and thermal cycling on linear dimensional changes were investigated and evaluated. The dimensional accuracy studies were performed using a specific designed mould and a coordinate measuring machine. The findings gave support to the view that tiller content is an important factor influencing the physical and mechanical properties of the composite inlay material. The higher tiller content gave less polymerization shrinkage. The greatest linear shrinkage recorded was 0.79 %. The average linear shrinkage (in air, water and thermal cycling) for 79 % filler Prisma AP.H was 0.33 %, for 65 % tiller Prisma AP.H was 0.35 % and for 50 % filler Prisma AP.H was 0.42 %. Generally, dimensional changes was greatest when stored dry. This was followed by materials which were thermal cycled. The least dimensional change recorded was when the materials were stored in water.
  2. Sharifah F. Alhabshi, Nambiar, Pharabhakaran
    Ann Dent, 1995;2(1):-.
    MyJurnal
    An apartment complex collapsed in Malaysia killing 48 people trapped inside.The dental disaster victim identification team comprising of officers from the Kuala Lumpur General Hospital, Armed Forces and the Dental
    Faculty, University of Malaya played a very active role in the identification process. Most of the bodies were badly decomposed and some grossly disfigured. Problems were encountered due to inadequate facilities and
    equipments at the mortuary.Difficulties were also encountered during the procurement and deciphering of information from dental records. Suggestions have been made to improve facilities, expertise and also to create awareness amongst dentists to ensure proper recording of their patients' dental status.
  3. Ghazali, N., Ismail, S.M., Abdul Rahman, Z.A.
    Ann Dent, 2001;8(1):-.
    MyJurnal
    Mental nerve neuropathy is an important presenting complaint that may be encountered by dental surgeons in their daily practise. There are various pathological processes that could bring about this symptom, ranging. from simple dental cause to vague, life threatening diseases. We present three cases of mental paraesthesia of different aetiologies. A literature review on mental nerve neuropathy related to malignancies and infection is discussed. The importance of a thorough chair side history taking, clinical examination and relevant investigations are emphasised in a suggested clinical approach to obtaining the diagnosis of a numb chin.
  4. Saub, R.
    Ann Dent, 2001;8(1):-.
    MyJurnal
    The habit of chewing betel quid has been practised since ancient times. Although the world has gone through modernization, a significant proportion of people still practices this habit. Substantial evidence has shown that betel quid chewing is associated with the occurrence of oral cancer and precancerous lesions, which has a tremendous psychosocial impact on an individual's life. Thus it becomes significantly important to dentistry to look into this matter. Since betel quid chewing is one of the causes of oral cancer, effort in cha~ging this habit is essential. This article addresses this issue.
  5. Abdul Rahman, Z.A.
    Ann Dent, 1998;5(1):-.
    MyJurnal
    Chronic idiopathic facial pain is the diagnosis given to a group of orofacial pain of psychogenic origin which includes atypical facial pain, facial-arthromyalgia, atypical odontalgia and oral dysaesthesia. Despite various biochemical findings, the condition remains poorly understood, but we have begun to understand the nature of these patients. This review discusses the possible aetiology of the disease through various biochemical and clinical findings. The contribution of behavioural and psychological factors to the clinical course of the disease are described. The type of adverse life events that predispose people to the disease and their potency are briefly mentioned. The current diagnostic approach for the disease is also mentioned. Treatment includes antidepressant medication, physiotherapy, bite-guards and analgesics. The problems encountered in the long-term management and outcome studies of these patients include drop-outs, non-compliance and denial.
  6. Lian, C.B., Ngeow, W.C.
    Ann Dent, 2000;7(1):-.
    MyJurnal
    Formalin is a clear solution of 37% formaldehyde in water. It is used in dentistry as a disinfectant, antiseptic and mainly as tissue fixative for preserving biologic specimens for histopathologic examination. The human knowledge on systemic formaldehyde intoxication is inadequate as only few cases of formalin ingestion have been reported. This paper presents a brief communication of the adverse effect of formalin to the human tissue.
  7. Lui, J.L.
    Ann Dent, 2007;14(1):14-18.
    MyJurnal
    During post crown restoration, the preparation of the post canal can be fraught with difficulties resulting in widening, gouging and transportation of the post canal; sometimes with near root perforation. A technique is described to repair such iatrogenically damaged internal root canal walls using reinforcing resin composite and optic glass fibre posts. The root dentine, resin composite and glass fibres, having similar moduli of elasticity, will result in a repaired root with a ‘monolithic’ structure and possessing numerous desirable characteristics. This repair technique can easily be carried out in one sitting at the chairside thereby allowing the continued serviceability of the iatrogenically compromised root-filled tooth.
  8. Mohd Shahminan Ibrahim, Wen, Yap Kai, Gonzalez, Maria Angela Garcia, Noor Azlin Yahya
    Ann Dent, 2020;27(1):41-49.
    MyJurnal
    This study compared the surface roughness of selected tooth coloured restorative materials that were polished according to manufacturers’ instructions and Sof-Lex. It also assessed the surface roughness of polished materials after thermocycling.Filtek Z350XT, Beautifil-Bulk Restorative and Cention N, were used in this study. A stainless steel mould (10mm diameter x 2mm height) was used to fabricate 75 cylindrical specimens: 15 Filtek Z350XT (FZ), 30 Beautifil-Bulk Restorative (BB) and 30 Cention N (CN). All 15 FZ specimens were polished with Sof-Lex. Fifteen BB and CN specimens were polished according to manufacturers’ instructions. The remaining fifteen BB and CN specimens were polished using Sof-Lex. All the specimens were subjected to thermocycling (1000 cycles). Surface roughness was assessed quantitatively with profilometry after specimen preparation (Mylar stage), polishingand thermocycling. Data were analysed using SPSS version 25.0 at α=0.05. When polished according to manufacturers’ instructions, BB had the lowest mean surface roughness (Ra) values (0.13±0.01μm) followed sequentially by CN (0.14±0.03μm) and FZ (0.15±0.02μm). The differences were not statistically significant. When polished with Sof-Lex, BB exhibited the smoothest surface (0.116±0.03μm) followed sequentially by and FZ (0.150±0.02μm) and CN (0.157±0.02μm). Thermocycling caused an increase in the Ra. The differences were statistically significant. All materials tested had Ra values below the threshold value of 0.2 μm at Mylar stage and after polishing with their recommended polishing system and Sof-Lex. Thermocycling produced rougher surfaces that did not exceed the threshold Ra value. Polishability was material dependent.
  9. Wan Ahmad Kamil W.N., Hassan S., Rahman F.A., Burhanuddin N.A., Goh Y.C., Kadir K., et al.
    Ann Dent, 2016;23(2):27-30.
    MyJurnal
    Sjörgren’s syndrome is an uncommon chronic autoimmune disorder that affects exocrine glands.
    Sialolithiasis is an obstructive salivary gland disease which is also uncommon in the parotid salivary gland.
    The existing literature has documented the occurrence of multiple calcifications within the parenchyma of
    the parotid glands in patients with Sjörgren’s syndrome. This report describes the first case of right parotid
    duct solitary sialolith formation in a 64 year old female patient with Sjörgren’s syndrome. Whether the
    salivary stone encountered in this case represents an oral manifestation of Sjörgren’s syndrome or is just
    a co-incidental finding was discussed.
  10. Mohd. Bakri, M., Mohamed, N.H., Whittaker, D.A.
    Ann Dent, 2003;10(1):-.
    MyJurnal
    Phosphophoryn, a higWyphosphorylated protein, is the most abundant protein among the non-collagenous protein of dentine. The staining of phosphophoryn can be done by using the silver colloid staining. In this paper, the staining effect of the silver colloid stain on both non-sclerotic and sclerotic dentine was investigated. Eight teeth from donors aged 14, 17, 22, 34, 55, 57, 60 and 65 were used for this experiment. The younger teeth were used to demonstrate normal root dentine while the older age teeth were used to demonstrate sclerotic root dentine at the apical region of the root. There was no staining of the normal root dentine as compared to sclerotic dentine when the silver colloid staining was used.
  11. Radzi, Z., Yahya, N.A., Kasim, N.H.A., Ismail, N.H., Ismail, N.A., Zamzam, N
    Ann Dent, 2006;13(1):18-23.
    MyJurnal
    Introduction: Owing to the variety of materials and methods employed, comparison of the results and findings from bonding studies is difficult. Until recently, several types of teeth have been used in published research papers as a substrate in orthodontic bonding research including bovine incisors, fresh and rebonded human premolars. Objectives: The purpose of this study was to compare the shear bond strength of an adhesive bonded to different tooth surfaces (human premolar, bovine incisor and rebonded human premolar). Methods: Two groups of thirty premolar teeth and one group of bovine incisors had brackets attached in a standardized manner using Transbond XT (3M Unitek). The adhesive was cured using conventional halogen light and a specially designed tool to standardize the distance between the light curing tip and the adhesive. The debonding force was measured using Instron universal testing machine. ANOVA and Post Hoc Dunnett C test were performed to determine any significant difference among groups (p
  12. Azizah Murtuzah Shekh, Noor Azlin Yahya
    Ann Dent, 2019;26(1):1-7.
    MyJurnal
    The study aimed to evaluate the shear bond strength (SBS) and to analyse the failure mode at the resin-dentine 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, self-etch), 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.
  13. Rusmah, M.
    Ann Dent, 1995;2(1):-.
    MyJurnal
    The root canal walls of twenty -five deciduous molar teeth with exposed and necrotic pulps were examined using thescanning electronmicroscope. Immediately after extraction, all teeth were fixed in Kamosky's solution. The coronal portion of the tooth was sectioned at about 2mm above the enamel cemental junction.The mesial and distal roots were separat~d and either split in the mesio-distal or bucco-lingual direction. All specimens were prepared for SEM. Obsevations showed that all roots were infected with organisms consisting of cocciand short rods. Some of the coccihad penetrated the dentine layer. However, the distribution of organisms is. not uniform throughout thecanals. Bacterialinvasion ismostinthecoronal region and reduces towards the apical region: Accompanying bacterial invasion is root canal walls deterioration. The odontoblastic processes are the first to deteriorate followed by the predentine layer.
  14. Abdul Ghani, M., Mohd Zaki, M.H., Cheah, C.W.
    Ann Dent, 2015;22(2):38-44.
    MyJurnal
    The aim of study was to evaluate the level of satisfaction of patients treated in the undergraduate Year 4 and Year 5 of University of Malaya. The subjects were patients treated in the Year 4 periodontology clinic (Polyclinic B) (n=38) and Year 5 periodontology clinic (Polyclinic C) (n=30). Data was gathered using a questionnaire which consisted of 4 components namely appointment facilities, infrastructure and basic facilities, behaviour of students dental clinician, and quality and efficiency of treatment provided. The results showed that for appointment facilities the level of satisfaction was almost 80%; for infrastructure and basic facilities the satisfaction was more than 85%; for behavior of students dental clinician the level of satisfaction was more than 90% and for quality and efficiency of treatment provided the level of satisfaction was more than 60%. When all the components were compared between patients treated in Polyclinic B to patients treated in Polyclinic C, there was no statistically significant difference (p>0.05). In conclusion, the level of satisfaction of patients treated in the undergraduate Year 4 and Year 5 periodontology clinic of University of Malaya is the same
  15. Rahim, Z.H.A.
    Ann Dent, 1998;5(1):-.
    MyJurnal
    Saliva collection is non-invasive and less stressful when compared with blood collection. Extensive studies on saliva has been carried out and the use of saliva as a biological sample in clinical diagnosis and for monitoring hormones, drugs and pollutants and viruses has been recommended. The complexities associated with saliva such as proper collection device and strict standardisation of a number of factors which include time of collection, types of saliva and storage made it less favourable to blood.
  16. Chai WL, Yong CK, Ngeow WC
    Ann Dent, 2003;10(1):22-26.
    MyJurnal
    Most prosthetic joint infections originate from wound contamination or haematogenous seeding from distant sites of infection. Bacteraemia may follow dental treatment but there is little evidence of it related to prosthetic joint infection. Nevertheless, controversy continues with regards to the effect of dental treatment in patients with prosthetic joints. This article reviews current English literature regarding the use of antibiotic prophylaxis in the dental management of patients with prosthetic joints. Routine antibiotic prophylaxis is not recommended for every patient with prosthetic joints when receiving dental treatments. However, antibiotic prophylaxis may be prescribed for high-risk groups with predisposing factors to infection when undergoing dental treatment with high risk of bacteraemia.
  17. Taiyeb Ali, T.B., Razak, I.A.
    Ann Dent, 2000;7(1):-.
    MyJurnal
    The purpose of the present study was to determine the periodontal profile, toothbrushing habits and oral hygiene status of patients referred to a teaching institution for periodontal treatment, based on patients' treatment records. A total of 207 consecutive patients diagnosed with periodontitis who had been interviewed and clinically examined over a period of approximately one year were included in this study. The assessments of plaque levels, bleeding on probing (BOP) scores, probing pocket depth (PPD) and degree of bone loss from radiographs were made. The average age of this study group was 45 ± 12.8 years old with an age range of 20 to 76 years. The subjects comprised of 40% Malays, 34% Chinese and 26% Indians. The male to female ratio was almost 1.5: 1. These patients presented with high plaque and BOP scores. These findings do not concur with the high frequency of toothbrushing reported (86.5 % of subjects brushing twice or more times per day). This may reflect on the ineffectiveness of brushing as evident from their high plaque scores. Periodontal pockets were detected in 69 % of the teeth in these patients with an average of 17 teeth per patient being involved. Probing pocket depths of >6mm was found on the average in 3 teeth per patient. Alveolar bone loss as assessed from radiographs was detected in 52 % of the teeth in this study group of which 12 teeth per patient on the average exhibited this. Advanced bone loss involving about 2/3 and more of the root length was detected on the average on 1 tooth per patient. Early onset periodontitis accounted for about 5% of the total cases seen. About 21 % of subjects suffered from advanced adult periodontitis. Hence about a-quarter of the patients referred already had marked periodontal destruction.
  18. Radzi, Z., Abu Kasim, N.H., Yahya, N.A., Abu Osman, N.A., Kassim, N.L.
    Ann Dent, 2008;15(1):33-39.
    MyJurnal
    The purpose of this study was to investigate the light intensity of selected light curing units with varying distance and angulation of the light curing tip and lightmeter. Materials and method: Four types of light units; Spectrum 800 (Dentsply), Coltulux 3 (Coltene), Elipar FreeLight 2 (3M Espe) and Starlight Pro (Mectron) were evaluated for light intensity at various distances between the light curing tip and the radiometer Cure Rite Denstply (0,1,3,5,10 and 15 mm). The light curing units were tested at right angles to the aperture of the light meter and at the angles of 45°, 60° to it at a standardized 5 mm distance. Results: The highest light intensity was obtained when the tip of light curing unit was in contact with the lightmeter aperture. The light intensity decreased significantly when the light tip was placed 5mm, 10mm and 15mm away from the lightmeter aperture. However, no significant differences (p> .05) were detected between Omm, Imm and 3mm. There was a decrease in light intensity when light~·tip was angulated at 45° and 60° except for Coltolux 3. Conclusions: The intensity of the curing light was affected by the distance between the light curing tip and the lightmeter. However, the decrease in light intensity of the light curing unit was found not to obey the inverse square law for the distances 0 to 15 mm. The study found that there was no significant difference between 45° and 60° angulation between the light curing tip and the lightmeter. However, the decrease in light intensity was significant when compared to the light tip placed perpendicular (90°) to the aperture of the light meter.
  19. Radzi, Z., Yahya, N.A.
    Ann Dent, 2005;12(1):-.
    MyJurnal
    Breast-feeding offers many benefits to the baby and the mother. For instance, breast milk provides the right balance of nutrients to help an infant grow into a strong and healthy toddler. Even though breastfeeding is a natural process, it is not always easy. In certain situations, some mothers are unable to breastfeed their babies or the babies are unable to adapt to breastfeeding. This will lead to the use of bottle-feeding. The effect of breast-feeding and bottle-feeding on physical growth has been well established but less has been concentrated on the craniofacial growth and dental development. This review reveals the effects of breast-feeding and bottle-feeding on craniofacial growth and dentoalveolar development based on the available literature.
  20. P, Rajapriya, P, Saravanan, NK, Burnice, KC, Priyanka, S, Shalini, Ramakrishnan
    Ann Dent, 2014;21(2):8-16.
    MyJurnal
    This review intends to provide a highlight on the potential application of salivary proteomics in
    periodontal diagnosis and attempts to throw light on the emerging salivary diagnostic tools for periodontal disease detection. Background: Clinical parameters for detection of periodontitis such as probing depth, attachment level, bleeding on probing, plaque index, and radiographic assessment of alveolar bone loss provide information on the severity of periodontitis, but they do not measure disease activity. Ideally, development and application of rapid and simple diagnostic tests based on host salivary or immune factors may facilitate early detection of patients at risk for periodontal diseases, allow appropriate intervention, decrease the need for more aggressive treatment and improve the response to periodontal therapy. Results: Studies have shown that saliva could be used as a diagnostic fluid as it is one of the inexpensive, noninvasive and easy-to-use diagnostic methods. Salivary constituents that have been studied as potential diagnostic biomarkers for periodontal disease includes locally produced proteins of host and bacterial origin, genetic/genomic biomarkers such as DNA and mRNA of host origin, bacteria and bacterial products, ions, steroid hormones and volatile compounds. Conclusion: Periodontal oral diagnostic devices will enable screening of large populations, more quickly and effectively. Use of salivary biomarkers to sample large populations will help to identify at-risk groups more effectively and increase access to treatment for those most at need, thereby, improving public health.
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