Abstract:
AIMS:The aims of this study were to investigate the pattern of transmission of laser light through carious human molar teeth, and to examine the effect on light transmission of reactions to caries in the dentine. METHODOLOGY:Sectioned carious human molars were examined whilst illuminated from their external surfaces by a helium-neon laser probe of 0.5 mm diameter. The pattern of light transmission was observed and selected specimens were photographed. The passage of light through the surrounding dentine toward the pulp space was investigated by confocal microscopy. Further carious and restored teeth were illuminated from three buccal and three lingual sites to establish the probability of light being able to reach the coronal pulp space. RESULTS:For all 31 teeth examined, it was possible to illuminate the pulp space from a position on the buccal side. The presence of intracoronal restorations did not necessarily prevent light transmission to the pulp. Confocal microscopy demonstrated conduction of light within dystrophic deposits of irregular secondary dentine. CONCLUSIONS:The presence of carious lesions or restorations in molar teeth does not necessarily interfere with transmission of laser light to the pulp space. Light is conducted within irregular secondary dentine. With appropriate probe placement, assessments of pulp health in diseased posterior teeth may be possible using laser Doppler flowmetry.
journal_name
Int Endod Jjournal_title
International endodontic journalauthors
Chandler NP,Pitt Ford TR,Watson TFdoi
10.1046/j.1365-2591.2001.00428.xkeywords:
subject
Has Abstractpub_date
2001-10-01 00:00:00pages
526-32issue
7eissn
0143-2885issn
1365-2591journal_volume
34pub_type
杂志文章abstract::This case report highlights the diagnostic challenge that herpes zoster represents if pain develops in the prodromal stage. A 58-year-old male presented with pain in the left maxilla. The symptoms had lasted for 7 months. The first premolar had been extracted soon after the onset, and the second premolar root filled s...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.2002.00605.x
更新日期:2002-12-01 00:00:00
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更新日期:2017-06-01 00:00:00
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更新日期:2008-04-01 00:00:00
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journal_title:International endodontic journal
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journal_title:International endodontic journal
pub_type: 杂志文章
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更新日期:2012-01-01 00:00:00
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journal_title:International endodontic journal
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更新日期:2011-06-01 00:00:00
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journal_title:International endodontic journal
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更新日期:2020-01-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章,随机对照试验
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更新日期:2009-10-01 00:00:00
abstract::The assurance of the quality of a service rendered by a member of the dental profession is an essential feature of any system of peer review in dentistry. This document addresses two essential elements: (i) appropriateness of treatment modality and (ii) quality or level of treatment rendered. In revising these guideli...
journal_title:International endodontic journal
pub_type: 共识发展会议,杂志文章,实务指引
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更新日期:2006-12-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2591.2011.02005.x
更新日期:2012-06-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.2000.00294.x
更新日期:2000-03-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12386
更新日期:2015-09-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/j.1365-2591.2007.01240.x
更新日期:2007-06-01 00:00:00
abstract:AIM:To compare the efficacy of reciprocating and rotary techniques with that of hand files for removing gutta-percha and sealer from root canals. METHODOLOGY:The root canals of fifty-four human extracted maxillary central incisors were cleaned and shaped using a crown-down technique to a size 40 and filled with gutta-...
journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1111/iej.12085
更新日期:2013-10-01 00:00:00
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journal_title:International endodontic journal
pub_type: 杂志文章
doi:10.1046/j.1365-2591.2001.00400.x
更新日期:2001-07-01 00:00:00
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journal_title:International endodontic journal
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更新日期:2008-11-01 00:00:00