1.Root canal treatment in Hospital Universiti Sains Malaysia Dental Clinic – a 5-year retrospective study
N.M. Ismail ; A.R. Ismail ; W.A.R. Wan Nor Syuhada
Archives of Orofacial Sciences 2008;3(1):23-28
Root canal treatment (RCT) requires high level of technical
skills of the dentist. Its outcome is an important part of evidencebased practice and become the basis of treatment planning and prognostic considerations. Adequate removal of micro-organisms and prevention of recolonization of residual micro-organisms through the
placement of root filling with satisfactory coronal seal ensures success. This retrospective record review study aimed to investigate the practices of RCT in Hospital Universiti Sains Malaysia (HUSM)
Dental Clinic, Kota Bharu, Kelantan. It involved 333 randomly selected patient records at the HUSM Record Unit. Data was obtained by careful analyses of daily treatment progress sheets and analyzed using SPSS version 12.0. A total of 2996 RCT cases were seen and 59.8% of patients were females. The age range of patients
varied from 14 to 64 years. The maxillary anterior teeth were most commonly treated (52.6%). Most operators (99.1%) used step-back technique and 97.6% used files to prepare root canals. The most commonly used material for obturation and sealing was gutta-percha
and epoxy resin-based sealer (AH26). About 82.9% used calcium hydroxide as intra-canal medication. About 25.5% of cases had no periapical pathology, 65.8% with pre-existing periapical radiolucencies healed in 1-3 months whereas 2.1% of cases with periapical pathology eventually healed after a year. About 6.9% cases failed after retreatment. The number of radiographs taken was
two to four pieces. RCT is a useful intervention to maintain longevity of teeth. Decision making and current updates of methods and materials are essential among practitioners as well as administrators to ensure success.
2.Measuring Pressure Interface Of Local Car Seats Under Static And Dynamic Circumstances: A Comparative Study
Khamis, N.K. ; Roslan, A.F ; Deros, B.M. ; Ismail, A.R.
Malaysian Journal of Public Health Medicine 2018;18(Special Volume (2)):89-96
Measuring discomfort towardthe car seat is important as the act of driving requires a driver to remain at the car seat while controlling the car. The seat condition, including sitting position as well as the driver’s posture can lead to discomfort and fatigue. The objective of this study is to investigate a driver’s pressure distribution in static and dynamic circumstances for two types of cars; the sedan and compact car. This study involved both subjective and objective evaluations of 12 respondents. For the subjective evaluation, the Visual Analog Scales (VAS) were used to obtain respondents' perception of discomfort. For the objective evaluation, pressure distribution readings of the seat interface were obtained using piezo capacitive sensors. The findings showed that the highest pressure was recorded for the compact car. Furthermore, the static circumstance showed greater pressure compared to the dynamic state. Subjective evaluation indicated that the right buttocks and the lower back (lumbar)experience the highest discomfort for both types of seats.The type of seat found to contribute to the value of different pressure. Thus, it can be concluded that appropriate seat selection can reduce pressure as well as discomfort.
Pressure
;
car seat
;
back rest
;
static
;
dynamic
;
sedan
;
compact
3.Periodontal disease as the initial oral manifestation of langerhans cell histiocytosis - a case report
A.R. Ahmad ; S.M. Ismail ; R.B. Zain ; Z. Mohamad Zaini
Annals of Dentistry 2009;16(1):31-36
Langerhans Cell Histiocytosis (LCH) refers to a group
of lesions presenting with a spectrum of clinical.
features but sharing similar histology. These lesions are
rare and treatment has been quite variable with current
treatment protocol recommended being dependent on
whether it is a unifocal or multi focal bone disease or
a multi focal multisystem disease. However, the clinical
presentations of LCH are variable and the decision to
place into the appropriate clinical types may sometimes
be masked by the non-discovery of all the lesions. In
the oral maxillofacial area, the clinical features of these
lesions may further pose a problem by nondescript
manifestations as dental/periodontal/oral mucosal
disorders. These oral findings may sometimes lead to
inappropriate choice of treatment and delay in the
diagnosis of all the lesions involved. This paper
describes one such case where LCH manifest itself as
a periodontal disease thus leading to delay in
identifying all the sites involved and consequently a
delay in id~ntifying the appropriate clinical type.
4.Detection and distribution of anti-leptospiral antibody among dogs and their handlers
Goh, S.H. ; Khor, K.H. ; Ismail, R. ; Megat Abdul Rani, P.A. ; Mohd Mohidin, T.B. ; Bahaman, A.R. ; Khairani-Bejo, S. ; Radzi, R. ; Alashraf, A.R. ; Sabri, A.R. ; Lau, S.F.
Tropical Biomedicine 2020;37(No.4):1074-1082
The incidence of leptospirosis seems to be on the rise and could be an alarming
indirect indication of a global re-emergence. It is a potential public health threat when dogs
are speculated to be involved in the transmission of leptospirosis through possible subclinical harbouring of Leptospira spp. and subsequent shedding into the environment. This
study aimed to detect anti-leptospiral antibodies among dogs and their handlers using the
microscopic agglutination test (MAT). Blood samples from 266 apparently healthy dogs and
194 dog handlers were collected at four working dog organisations and four dog shelters.
Serum samples were tested using MAT against 20 leptospiral serovars with a cut-off titre
>1:100 (dog) and >1:50 (dog handlers). Seventy dogs (70/266; 26.3%) were seropositive
mainly against serovars Icterohaemorrhagiae, Ballum, Bataviae and Javanica (titres ranged:
1:100–1:800). Sixty-seven dog handlers (67/194; 34.5%) were seropositive mainly against
serovars Grippotyphosa, Icterohaemorrhagiae and Malaysia (titres ranged: 1:50–1:200). Dogs
were seropositive due to exposure, vaccination or active infection. Seropositive dog handlers
could indicate exposure or active infection. This shows the potential of dogs in maintaining
and spreading the infection in Malaysia. Due to the occupational risk as a result of frequent
contact with dogs and exposure to contaminated environments, dog handlers should be made
aware of the presence of this zoonotic disease.
5.Influence of citronella and chlorpyrifos on Chrysomya megacephala (Fabricius) and Chrysomya rufifacies (Macquart) (Diptera: Calliphoridae) infesting rabbit carcasses
Denis, C.I. ; Nordin, N.H. ; Azman, A.R. ; Abdul Wahab, R. ; Ismail, D. ; Omar, B. ; Mahat, N.A.
Tropical Biomedicine 2018;35(3):755-768
Influence of citronella and chlorpyrifos on oviposition and duration for completing
life cycles for Chrysomya megacephala and Chrysomya rufifacies infesting decomposing
rabbit carcasses was studied. Male rabbit carcasses (n = 12) were equally divided into
control, citronella- and chlorpyrifos–treated groups, and left to decompose for 14 consecutive
days. C. megacephala was the first necrophagous fly oviposited in all control and citronellatreated
carcasses followed by C. rufifacies. Although initial oviposition of C. megacephala
was delayed (4-6 hours) in citronella-treated carcasses (P < 0.05), prolongation in completing
its life cycle was not observed. Neither delayed initial oviposition nor prolonged life cycle for
C. rufifacies in citronella-treated carcasses was observed. Oviposition was delayed for
chlorpyrifos-treated carcasses (0.42 g/L), and eclosion of eggs remained unsuccessful. The
findings deserve consideration because these chemicals are easily accessible and can be
used by cunning criminals to confuse forensic entomologists while estimating minimum postmortem
interval.