Thomas K L Li

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OBJECTIVES To investigate the prevalence and pattern of impacted teeth and associated pathologies in the Hong Kong Chinese population. SETTING The Reception and Primary Care Clinic, Prince Philip Dental Hospital, Hong Kong. DESIGN Retrospective study. SUBJECTS AND METHODS The records of 7486 patients were examined to determine whether the chief(More)
The most common site of haemorrhage in maxillary osteotomies is the posterior maxilla. Better understanding of the anatomy in this region may minimize possible vascular complications. The aim of the study was to study the osteology of the posterior maxillary region and establish clinical safety guidelines for the Le Fort I osteotomy Thirty human dry skulls(More)
HIV-infected individuals maintain multiple oral C. albicans strains over time that are thought to undergo microevolution in terms of both phenotypic and genotypic features. To study this phenomenon, a 12-month prospective study was conducted in a cohort of 16 HIV-infected ethnic Chinese individuals with (A) and without (B) symptoms of oropharyngeal(More)
OBJECTIVE To describe and compare patterns of tooth loss in 2 groups of 21- to 25-year-old Hong Kong Chinese patients examined 15 years apart. MATERIALS AND METHODS The panoramic radiographs of consecutive young adult patients who attended the primary care department of the Dental School of the University of Hong Kong in 1983 and 1998 were reviewed. (More)
PURPOSE The aim of this study was to compare the relative accuracy of the ridge-mapping method against that of standard computed tomography (CT). MATERIALS AND METHODS Consecutive partially edentulous subjects requiring dental implants were recruited for this prospective study. Vacuum-formed radiographic templates with reference points were used for the(More)
OBJECTIVES To assess the effect of a laser-guided collimator in intraoral radiography training. METHODS A custom-made collimator with four red laser diodes on each corner on the rim of an aluminium alloy cubic housing was fabricated. The laser used low power diodes, which are classified as laser-safe by the United States Food and Drug Administration(More)
Preoperative radiographic assessment is mandatory for the meticulous treatment planning and successful placement of implants. The precise topographical evaluation of selected implant sites, apart from the most straightforward cases, requires tomographic examination with the use of diagnostic radiographic templates. The incorporation of various radiopaque(More)
AIM The aim of the present study was to compare the accuracy of radiographic measurements for dental implants planning using cone-beam computed tomography (CBCT) and helical computed tomography (HCT). METHODS Six pig ribs were wrapped by putty impression material, with radiographic markers placed. Two CBCT and an HCT were taken following the standard(More)
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