Displaying all 15 publications

  1. Othman SA, Ahmad R, Asi SM, Ismail NH, Rahman ZA
    Br J Oral Maxillofac Surg, 2014 Mar;52(3):208-13.
    PMID: 24342372 DOI: 10.1016/j.bjoms.2013.11.008
    The aims of this study were to assess the quantitative values of measurements using proportion indices in the craniofacial region in patients with repaired, non-syndromic, complete unilateral cleft lip and palate (UCLP), and compare them with a control group who did not have clefts using the non-invasive systems of 3-dimensional technology. Three-dimensional measurements of the facial surfaces of 15 Malay patients who had UCLP repaired and 100 Malay control patients aged 18-25 years were analysed. The 3-dimensional images of the respondents' faces were captured using the VECTRA-3D Stereophotogrammetry System. Eleven craniofacial proportions were assessed using a combination of 18 linear measurements obtained from 21 anthropometric soft tissue landmarks. These measurements were used to produce proportion indices to find the differences in the morphological features between the groups, and assessed using the independent sample t test and z scores. There were significant differences between the groups in 7 out of 11 craniofacial proportion indices (p=0.001-0.044). Z scores of 2 indices were disproportionate. They were nasal index (which was severely supernormal) and upper lip index (which was moderately supernormal). Patients with UCLP had higher mean z scores, indicating that patients with UCLP tended to have larger faces than the control group. There were clinically important differences mainly in the nasolabial area, where the nose and the upper lip were wider, larger, or flatter in patients with UCLP.
  2. Alam MK, Iida J, Sato Y, Kajii TS
    Br J Oral Maxillofac Surg, 2013 Dec;51(8):e205-10.
    PMID: 23099108 DOI: 10.1016/j.bjoms.2012.10.001
    We have evaluated the craniofacial morphology of Japanese patients with unilateral cleft lip and palate (UCLP) and assessed the various postnatal factors that affect it. Lateral cephalograms of 140 subjects (mean (SD) aged 7 (2) years) with UCLP were taken before orthodontic treatment. Surgeons from Hokkaido University Hospital had done the primary operations. The craniofacial morphology was assessed by angular and linear cephalometric measurements. Cheiloplasty, palatoplasty, and preoperative orthopaedic treatment were chosen as postnatal factors. To compare the assessments of the postnatal factors, we made angular and linear cephalometric measurements for each subject and converted them into Z scores in relation to the mean (SD) of the two variables. Subjects treated by the modified Millard cheiloplasty had larger sella-nasion-point A (SNA) and nasion-point A-pogonion (NA-POG) measurements than subjects treated by the modified Millard with a vomer flap cheiloplasty. Two-stage palatoplasty showed consistently better craniofacial morphology than the other palatoplasty. Subjects who had preoperative orthopaedic treatment with a Hotz plate had significantly larger upper incisor/sella-nasion (U1-SN) measurements than who had no preoperative orthopaedic treatment or an active plate. We conclude that in subjects treated by a modified Millard type of cheiloplasty, a two-stage palatoplasty, and a Hotz plate there were fewer adverse effects on craniofacial morphology.
  3. Jalil AA, Zain RB, van der Waal I
    Br J Oral Maxillofac Surg, 2005 Aug;43(4):336-8.
    PMID: 15993288
    The diagnosis of Darier disease of the oral mucosa was made only after biopsying a leukoplakia-like lesion of the palate.
  4. McMahon JD, Crowther J, Taylor WM, Wong LS, Paterson T, Devine J, et al.
    Br J Oral Maxillofac Surg, 2015 Nov;53(9):814-9.
    PMID: 26212419 DOI: 10.1016/j.bjoms.2015.06.006
    We describe the technical aspects and report our clinical experience of a surgical approach to the infratemporal fossa that aims to reduce local recurrence after operations for cancer of the posterior maxilla. We tested the technique by operating on 3 cadavers and then used the approach in 16 patients who had posterolateral maxillectomy for disease that arose on the maxillary alveolus or junction of the hard and soft palate (maxillary group), and in 19 who had resection of the masticatory compartment and central skull base for advanced sinonasal cancer (sinonasal group). Early proximal ligation of the maxillary artery was achieved in all but one of the 35 patients. Access to the infratemporal fossa enabled division of the pterygoid muscles and pterygoid processes under direct vision in all cases. No patient in the maxillary group had local recurrence at median follow up of 36 months. Four patients (21%) in the sinonasal group had local recurrence at median follow up of 27 months. Secondary haemorrhage from the cavernous segment of the internal carotid artery resulted in the only perioperative death. The anterolateral corridor approach enables controlled resection of tumours that extend into the masticatory compartment.
  5. Sirichai P, Anderson PJ
    Br J Oral Maxillofac Surg, 2015 Dec;53(10):938-42.
    PMID: 26130591 DOI: 10.1016/j.bjoms.2015.06.007
    Our aim was to examine the relations between type and site of the fracture, age of the patient, and the management and outcomes, among children diagnosed with orbital fractures at the Women's and Children's Hospital, Adelaide, during a 10-year period from 1 January 2003 to 31 December 2012. The records of 41 children whose ages ranged from 8 months to 15 years were analysed. There was a male predominance (n=33). Two most common fractures were orbital floor and multiwalled fractures, with medial wall as the second most common site. The most common cause of injury was sport, more often with increasing age. In contrast, falls were more common among young children. Fractures of the orbital roof were more common among young children, all of ours being in children 10 years old or less. Lateral wall fractures were also more common among young children and declined in frequency with increasing age. In contrast, fractures of the orbital floor and medial wall can occur at any age, though those of the medial wall were more common among older children. As children grow their behaviour and activities change, and the mechanism by which they become injured also changes. Growth and development of the craniofacial skeleton lead to differences in the patterns of fractures with age. Fractures of the orbital roof and lateral wall are more common among young children, while those of the orbital floor and medial wall can occur at any age.
  6. Siar CH, Ng KH
    Br J Oral Maxillofac Surg, 2000 Feb;38(1):19-22.
    PMID: 10783442
    Analysis of case records of 46 patients with peripheral odontogenic fibroma (1967-95) diagnosed in the Division of Stomatology, Institute for Medical Research, Kuala Lumpur, disclosed a relatively young age of onset (mean, 32.2 years; range 5 months-64 years; peak incidence second decade of life), a slight female preponderance (M:F ratio 1:1.3), no racial predilection, a slight bias towards location in the mandible (52%) and a wide histomorphological range. All cases were treated by simple excision. Follow-up records were generally not available, so we do not know what the recurrence rate is.
  7. Ng KH, Siar CH
    Br J Oral Maxillofac Surg, 1993 Oct;31(5):299-303.
    PMID: 8218083
    Seventeen cases are reported of desmoplastic variant of ameloblastoma of the jaws observed during the years 1967-1991. There were 12 females and 5 males, and these consisted of 7 Chinese, 6 Malays, 2 Indians, 1 Sikh and 1 Kadazan. Their ages at diagnosis ranged from 21-60 years with a mean of 36.6 years. There were 10 mandibular and 7 maxillary tumours. Of these, 14 cases involved the anterior segment with extension to the premolar region in 5 cases. 60% of cases were radiologically suggestive of fibro-osseous lesions. The main mode of treatment was resection and 1 case presented with recurrence. The findings of this study were compared with those of previous reports.
  8. Siar CH, Ng KH
    Br J Oral Maxillofac Surg, 1993 Jun;31(3):183-6.
    PMID: 7685634
    Four cases of either combined occurrence of ameloblastoma and odontogenic keratocyst or a rare keratinising variant of ameloblastoma are presented. The cardinal histomorphologic characteristics are simultaneous occurrence of ameloblastomatous epithelial islands with central keratinisation and multiple keratinising cysts. Immunohistochemically the tumour elements were keratin positive and occasionally S-100 protein and desmin positive. Major differential diagnosis of these neoplasms are discussed.
  9. Siar CH, Ng KH
    Br J Oral Maxillofac Surg, 1988 Jun;26(3):215-20.
    PMID: 2456095
    The records of the Division of Stomatology, Institute for Medical Research, Kuala Lumpur, Malaysia, were reviewed for the incidence of odontogenic keratocysts of the orthokeratinised variety, during the 20-year-period, 1967 to 1986. Nine cases were found. The clinical, histological and radiological features of these cases are reported. Many features were similar to previous reports of this entity but a peak incidence in the second decade of life, an almost even distribution in the maxilla and mandible, and a distinct predilection for the Chinese were observed. It is suggested that these features may be peculiar to Malaysians.
  10. Siar CH, Ng KH
    Br J Oral Maxillofac Surg, 1991 Apr;29(2):106-9.
    PMID: 2049349
    The combined epithelial odontogenic tumour represents a hybrid lesion comprising primarily areas of adenomatoid odontogenic tumour intermixed with foci of calcifying epithelial odontogenic tumour. Five such cases retrieved from the files of the Division of Stomatology, Institute for Medical Research, Kuala Lumpur, and four others from the existing literature were analysed. A mean age of 18.8 years, a female preponderance (66.7%) with a male to female ratio of 1:2 and predilection for the mandible (55.6%) were observed. All cases were treated by conservative surgery and the lack of recurrence confirmed the innocuous nature of this lesion.
  11. Boon LC, Nik-Hussien NN
    Br J Oral Maxillofac Surg, 1987 Oct;25(5):410-4.
    PMID: 3478086
    Burkitt's lymphoma is a tumour that most often affects the jaws, especially in endemic areas of Africa. In non-endemic areas, the jaws are affected in about 15-18% of cases. A case is presented which demonstrates the significance of jaw lesions in the disease. The history and pathogenesis of the disease also are discussed.
  12. Martinez RC, Sathasivam HP, Cosway B, Paleri V, Fellows S, Adams J, et al.
    Br J Oral Maxillofac Surg, 2018 05;56(4):332-337.
    PMID: 29628167 DOI: 10.1016/j.bjoms.2018.03.011
    Our aim was to examine the clinicopathological features of squamous cell carcinoma (SCC) of the oral cavity and oropharynx in a group of young patients who were dignosed during a 15-year period (2000-2014). Patients' clinical details, risk factors, and survival were obtained from medical records. Formalin-fixed, paraffin-embedded, tissue was tested for high-risk human papillomavirus (HPV). The results were compared with those of a matching group of older patients. We identified 91 patients who were younger than 45 years old, and the 50 youngest patients were studied in detail. The male:female ratio was 2:1, with more tumours located in the oral cavity than in the oropharynx (35 compared with 15). HPV-related SCC was restricted to the oropharynx. When matched for site, stage and HPV status, five-year overall survival was similar in young and matched older patients (log-rank test, p=0.515). Our findings suggest that young patients with oral SCC have a disease profile similar to that of older patients with the condition. It is plausible that prognostic information generally available for oral cancers is applicable to young patients with the disease.
  13. Al-Namnam NMN, Hariri F, Rahman ZAA
    Br J Oral Maxillofac Surg, 2018 06;56(5):353-366.
    PMID: 29661509 DOI: 10.1016/j.bjoms.2018.03.002
    Our aim was to summarise current published evidence about the prognosis of various techniques of craniofacial distraction osteogenesis, particularly its indications, protocols, and complications. Published papers were acquired from online sources using the keywords "distraction osteogenesis", "Le Fort III", "monobloc", and "syndromic craniosynostosis" in combination with other keywords, such as "craniofacial deformity" and "midface". The search was confined to publications in English, and we followed the guidelines of the PRISMA statement. We found that deformity of the skull resulted mainly from Crouzon syndrome. Recently craniofacial distraction has been achieved by monobloc distraction osteogenesis using an external distraction device during childhood, while Le Fort III distraction osteogenesis was used in maturity. Craniofacial distraction was indicated primarily to correct increased intracranial pressure, exorbitism, and obstructive sleep apnoea in childhood, while midface hypoplasia was the main indication in maturity. Overall the most commonly reported complications were minor inflammatory reactions around the pins, and anticlockwise rotation when using external distraction systems. The mean amount of bony advancement was 12.3mm for an external device, 18.6mm for an internal device and 18.7mm when both external and internal devices were used. Treatment by craniofacial distraction must be validated by long-term studies as there adequate data are lacking, particularly about structural relapse and the assessment of function.
  14. Turner J, Hammond D, Goodson M
    PMID: 33109382 DOI: 10.1016/j.bjoms.2020.08.090
    Publication in peer-reviewed journals is often seen as a cornerstone of the academic and clinical career within medicine and surgery. As one of the largest circulations in oral and maxillofacial surgery, the British Journal of Oral and Maxillofacial Surgery (BJOMS) offers trainees and consultants the opportunity to disseminate valuable information worldwide. The aim of this paper is to investigate the variation in publication rates of U.K. authors based upon their Deanery in order to identify potential hotspots. All volumes of BJOMS between 2011 and 2019 were hand searched to identify full articles authored by authors in U.K., these were categorised by Deanery and allocated a theme within OMFS. The results demonstrate that, of the 378 full length articles, over 30% of these were from two Deaneries: London and North West (West). Oncology, OMFS training and education, and craniofacial trauma were the three most common themes of publication amounting to 51.5% of total publications. There has been an unfortunate decrease in publications from U.K. Deaneries of almost 30% from 2011 to 2019 which begs the question of whether fewer publications are being accepted or if rates of submission have reduced.
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