Displaying publications 61 - 69 of 69 in total

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  1. Abd Rahman N, Abdullah N, Samsudin AR, Naing Mohd Ayub Sadiq L
    Malays J Med Sci, 2004 Jul;11(2):41-51.
    PMID: 22973126
    This study was done to determine the prevalence of dental anomalies and facial profile abnormality and its association with the non-syndromic cleft lip and palate (CLP) as compared to the non-cleft children. A comparative cross sectional study was conducted where the case group consist of 98 non-syndromic CLP children-unilateral (UCLP) and bilateral (BCLP) who attended the Combined Clinic at Kota Bharu Dental Clinic (KBDC) while the comparison group comprised of 109 non-cleft children who attended the outpatient clinic at KBDC. Their ages were between 3 to 12 years old. Clinical oral and facial profile examinations were carried out to look for dental anomalies (morphology, number and alignment of teeth) and facial profile abnormality. The prevalence of anomalies in morphology of teeth in CLP (24.5%) and non-cleft (10.1%), number of teeth in CLP (44.9%) and non-cleft (7.3%), mal-alignment in CLP (79.6%) and non-cleft (27.5%) and facial profile abnormality in CLP (26.5%) and non-cleft (9.1 %). There was a significant association between CLP and anomalies in morphology, number, mal-alignment and abnormality in facial profile; (p < 0.05). Therefore, there was a high prevalence and risk of dental anomalies and facial profile abnormality in the CLP children compared to the non-cleft children.
  2. Rajion ZA, Al-Khatib AR, Netherway DJ, Townsend GC, Anderson PJ, McLean NR, et al.
    Int J Pediatr Otorhinolaryngol, 2012 Feb;76(2):227-34.
    PMID: 22136741 DOI: 10.1016/j.ijporl.2011.11.008
    The purpose of this study was to use three-dimensional computed tomography data and computer imaging technology to assess the skeletal components of the naso-pharyngeal area in patients with cleft lip and palate and to quantify anatomical variations.
  3. Rahman RA, Ahmad A, Rahman ZA, Mokhtar KI, Lah NA, Zilfalil BA, et al.
    Cleft Palate Craniofac J, 2008 Nov;45(6):583-6.
    PMID: 18956930 DOI: 10.1597/07-020.1
    To determine the frequency of the transforming growth factor-alpha (TGFalpha) Taq1 polymorphism in nonsyndromic cleft lip with or without cleft palate (CL+/-P) and cleft palate only (CP) in Kelantan, Malaysia.
  4. Rajion ZA, Townsend GC, Netherway DJ, Anderson PJ, Yusof A, Hughes T, et al.
    Cleft Palate Craniofac J, 2006 Sep;43(5):513-8.
    PMID: 16986980
    To investigate anatomical variations and abnormalities of cervical spine morphology in unoperated infants with cleft lip and palate.
  5. Al Qabbani A, Al Kawas S, A Razak NH, Al Bayatti SW, Enezei HH, Samsudin AR, et al.
    J Craniofac Surg, 2018 Mar;29(2):e203-e209.
    PMID: 29303859 DOI: 10.1097/SCS.0000000000004263
    INTRODUCTION: Alveolar bone is critical in supporting natural teeth, dental implants as well as a removable and fixed prosthesis. Alveolar bone volume diminishes when its associated natural tooth is lost.

    OBJECTIVE: The aim of this study is to evaluate the effectiveness of bovine bone granules on alveolar bone socket augmentation for ridge preservation following atraumatic tooth extraction.

    MATERIALS AND METHODS: Twenty medically fit patients (12 males and 8 females aged between 18 and 40 years) who needed noncomplicated tooth extraction of 1 mandibular premolar tooth were divided randomly and equally into 2 groups. In control group I, the empty extraction socket was left untreated and allowed to heal in a conventional way. In group II, the empty extraction socket wound was filled with lyophilized bovine bone xenograft granules 0.25 to 1 mm of size, 1 mL/vial. A resorbable pericardium membrane was placed to cover the defect. Clinical and 3-dimensional radiological assessments were performed at day 0, 3 months, and 9 months postoperative.

    RESULTS: There were no clinical differences in general wound healing between the groups. Comparisons within the groups showed a significant difference of bone resorption of 1.49 mm (95% confidence interval, 0.63-2.35) at 3 months, and further resorption of 1.84 mm (P ≤ 0.05) at 9 months in the control group. No significant changes of bone resorption were observed in group II during the same time interval. Comparison between groups showed a significant difference of bone resorption at 3 and 9 months (2.40 and 2.88 mm, respectively).

    CONCLUSION: The use of lyophilized demineralized bovine bone granules in socket preservation to fill in the extraction socket seems essential in preserving the alveolar bone dimension as it showed excellent soft and hard tissue healing. This study concludes that the alveolar bone socket exhibited a dynamic process of resorption from the first day of tooth extraction. Evidence shows the possibility of using bovine bone granules routinely in socket volume preservation techniques following tooth extraction.

  6. Al Qabbani A, Al Kawas S, Enezei H, Razak NHA, Al Bayatti SW, Samsudin AR, et al.
    Dent Res J (Isfahan), 2018;15(6):420-429.
    PMID: 30534170
    BACKGROUND: The aim of this study was to evaluate the stability of immediate implant placement for alveolar bone augmentation and preservation with bovine bone graft following atraumatic tooth extraction.

    MATERIALS AND METHODS: This was a prospective interventional study with convenient sampling (n = 10). Thirty patients aged between 18 and 40 years, who needed noncomplicated tooth extraction of mandibular premolar tooth, were sequentially divided equally into three groups. In Group I, simple extraction was done and the empty extraction socket left to heal conventionally. In Group II, extraction sockets were filled with lyophilized bovine granules only. In Group III, immediate implants were placed into extraction sockets, and the buccal gap was also filled with bovine granules. All groups were subjected to cone beam computed tomography scan for radiological evaluation. Assessment of biomechanical stability (radiofrequency analysis [RFA] was performed at 9 months postoperative for Group III to assess the degree of secondary stability of the implants using Osstell. Repeated measure analysis of variance (ANOVA) test was applied when comparing within each group at three different time intervals, whereas one-way ANOVA was applied followed by post hoc-tukey test when comparing between groups. P < 0.05 was considered statistically significant.

    RESULTS: Radiological assessment reveals a significant difference of bone resorption in alveolar dimension within Group I; 1.49 mm (P = 0.002), and 0.82 mm (P = 0.005), respectively, between day 0 and 3 months. Comparison between Group I and III showed a highly significant difference of bone resorption in ridge width at 3 months 2.56 mm (P = 0.001) and at 9 months interval 3.2 mm (P < 0.001). High RFA values demonstrating an excellent biomechanical stability were observed in Group III at 9 months postoperatively.

    CONCLUSION: The insertion of immediate implants in extraction sockets with bovine bone augmentation of the buccal gap was able to preserve a greater amount of alveolar ridge volume.

  7. Al-Daghestani H, Qaisar R, Al Kawas S, Ghani N, Rani KGA, Azeem M, et al.
    Sci Rep, 2024 Feb 27;14(1):4719.
    PMID: 38413677 DOI: 10.1038/s41598-024-54944-7
    Hindlimb suspension (HLS) mice exhibit osteoporosis of the hindlimb bones and may be an excellent model to test pharmacological interventions. We investigated the effects of inhibiting endoplasmic reticulum (ER) stress with 4-phenyl butyrate (4-PBA) on the morphology, physicochemical properties, and bone turnover markers of hindlimbs in HLS mice. We randomly divided 21 male C57BL/6J mice into three groups, ground-based controls, untreated HLS group and 4-PBA treated group (HLS+4PBA) (100mg/kg/day, intraperitoneal) for 21 days. We investigated histopathology, micro-CT imaging, Raman spectroscopic analysis, and gene expression. Untreated HLS mice exhibited reduced osteocyte density, multinucleated osteoclast-like cells, adipocyte infiltration, and reduced trabecular striations on micro-CT than the control group. Raman spectroscopy revealed higher levels of ER stress, hydroxyproline, non-collagenous proteins, phenylalanine, tyrosine, and CH2Wag as well as a reduction in proteoglycans and adenine. Furthermore, bone alkaline phosphatase and osteocalcin were downregulated, while Cathepsin K, TRAP, and sclerostin were upregulated. Treatment with 4-PBA partially restored normal bone histology, increased collagen crosslinking, and mineralization, promoted anti-inflammatory markers, and downregulated bone resorption markers. Our findings suggest that mitigating ER stress with 4-PBA could be a therapeutic intervention to offset osteoporosis in conditions mimicking hindlimb suspension.
  8. Rajion ZA, Townsend GC, Netherway DJ, Anderson PJ, Hughes T, Shuaib IL, et al.
    Cleft Palate Craniofac J, 2006 Sep;43(5):532-8.
    PMID: 16986987
    To compare morphological and positional variations of the hyoid bone in unoperated infants with cleft lip and palate (CL/P) with those in noncleft infants.
  9. Lotfy M, Badra G, Burham W, Alenzi FQ, Bermejo-Martin JF, Bernardo D, et al.
    Br J Biomed Sci, 2006 Jan;63(4):171-184.
    PMID: 28700882 DOI: 10.1080/09674845.2006.11732742
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