Publication:
Effect of cavity depth on dentine sensitivity in man

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Issued Date

2016

Resource Type

Article

File Type

application/pdf

ISSN

39969

DOI

10.1016/j.archoralbio.2016.02.015

Other identifier(s)

2-s2.0-84959513991

Rights Holder(s)

มหาวิทยาลัยศรีนครินทรวิโรฒ

Bibliographic Citation

Archives of Oral Biology. Vol 66, (2016), p.120-128

Suggested Citation

Wanachantararak S., Ajcharanukul O., Vongsavan N., Matthews B. Effect of cavity depth on dentine sensitivity in man. Archives of Oral Biology. Vol 66, (2016), p.120-128. doi:10.1016/j.archoralbio.2016.02.015 Retrieved from: https://hdl.handle.net/20.500.14740/5365

Title

Effect of cavity depth on dentine sensitivity in man

Author(s)

Wanachantararak S.
 Ajcharanukul O.
 Vongsavan N.
 Matthews B.

Abstract

Objective To determine if dentine at the enamel-dentine junction (EDJ) in man is more sensitive to hydrostatic pressure stimuli then deeper dentine. Design Cavities (1 mm diam.) were cut at the tips of the buccal and lingual cusps of 8 premolars in 3 subjects (ages: 22-25 years). Both cavities were initially deepened to expose the EDJ then one (the test cavity) was deepened in steps of 0.5 mm to a maximum of 2.0 mm below the EDJ. The cavities were tested at each stage, before and after etching, with 5 s, hydrostatic pressure stimuli between 400 mm above, and 400 mm below atmospheric. The intensity of any pain produced was recorded on a VAS scale and electrodes were placed in both cavities in an attempt to monitor any action potentials evoked in intradental nerves. Results In all the teeth, the intensity of the pain produced by a stimulus tended to increase as the cavity was deepened, as did the number of action potentials recorded (in 6 of the 8 teeth). The responses were greater from etched than unetched dentine, and negative pressures evoked greater responses than the corresponding positive pressures. Conclusion There was no evidence that dentine close to the EDJ was more sensitive to hydrostatic pressure stimuli than deeper dentine. It may however be more sensitive to mechanical stimuli as it is more compliant. © 2016 Published by Elsevier Ltd.

Subject(s)

Adult
 Adverse effects
 Anatomy and histology
 Atmospheric pressure
 Chemically induced
 Comparative study
 Dental acid etching
 Dental etching
 Dental surgery
 Dentin
 Dentin sensitivity
 Enamel
 Human
 Hydrostatic pressure
 Male
 Pain
 Pain threshold
 Pathophysiology
 Physiology
 Premolar tooth
 Tooth crown
 Acid Etching, Dental
 Adult
 Atmospheric Pressure
 Bicuspid
 Dental Cavity Preparation
 Dental Enamel
 Dental Etching
 Dentin
 Dentin Sensitivity
 Humans
 Hydrostatic Pressure
 Male
 Pain
 Pain Threshold
 Tooth Crown

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URI

https://hdl.handle.net/20.500.14740/5365

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Scopus: Year 1983-2021

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