Association Between Severity of Tooth Wear and Dentinal Hypersensitivity
Association Between Severity of Tooth Wear and Dentinal Hypersensitivity
Association Between Severity of Tooth Wear and Dentinal Hypersensitivity
Correspondence ABSTRACT
Dr. Ashok Ayer Background & Objectives: Tooth wear (attrition, abrasion, erosion, and
Assistant Professor, abfraction) is perceived globally as ever increasing problem. Several
Department of Conservative outcome of the tooth wear are hypersensitivity, esthetic problems,
Dentistry and Endodontics, functional impairment, annoyance to the patient, and fracture of the
B.P. Koirala Institute of Health tooth. Among these, the measurable and more commonly reported
Sciences, Dharan, Nepal outcome is hypersensitivity to stimuli. Although dentin hypersensitivity
is a common clinical condition and is generally reported by the patient
Email: ashokayer@gmail.com after experiencing a sharp, short pain caused by one of the several
different external stimuli, it is often inadequately understood. None of the
DOI: http://dx.doi.org/10.3126/ scientific literature available till date attempted to establish the
jcmsn.v12i3.15487 relationship between tooth wear and dentin hypersensitivity which could
be a key factor in monitoring those patients. The aim of the study was to
Article received: June 24th estimate the association between severity of teeth wear and sensitivity in
2016 the patients with reported dentinal hypersensitivity. Materials &
Article accepted: Aug 30th Methods: Fifty patients with dentin hypersensitivity were investigated
2016 for tooth wear. Tooth wear measured using exact tooth wear index and
level of sensitivity to stimuli was recorded using a numerical rating scale.
Results: Enamel wear at cervical region of teeth showed a positive
correlation (p=.010), similarly, dentin wear at cervical region of teeth
showed positive correlation and significant association (p<.001) with
dentinal hypersensitivity. Conclusion: The observation supports a
significant association between severities of tooth surface wear and
dentinal hypersensitivity.
Citation: Ayer A. Association between Severity of Tooth Wear and Dentinal Hypersensitivity. JCMS
Nepal. 2016;12(3):94-8.
96
Original Research Article Ayer A
Table 4: Correlation between enamel wear and dentin wear
Correlation Matrix
Tooth surface Dentin Dentin Dentin Incisal/ Dentin Palatal/
Buccal Cervical Occlusal Lingual
Enamel Buccal Correlation Coefficient .409** .293* - -
p-Value .003† .039† - -
Enamel Correlation Coefficient - .613** - -
Cervical
p-Value - <0.001† - -
Enamel Incisal/ Correlation Coefficient - - .673** -
Occlusal
p-Value - - <0.001† -
Enamel Palatal/ Correlation Coefficient - - - .556**
Lingual
p-Value - - - <0.001†
**Correlation is significant at the 0.01 level *Correlation is significant at the 0.05 level
p- Value (†Significant, p< 0.05)
97
Severity of Tooth Wear and Dentinal Hypersensitivity JCMS Nepal 2016;12(3):60-5
the prevention of the tooth wear leading to dentinal WT. Determination of some compressive properties of
hypersensitivity. human enamel and dentin. J Am Dent Assoc. 1958;57
It is often difficult for patients to identify and (4):487-95. DOI: 10.14219/jada.archive.1958.0194.
10. Poole DFG, Newman HN, Dibdin GH. Structure and
localize the painful situation in teeth and thus there porosity of human cervical enamel studied by polarizing
is risk for false positive.15 The results of this study microscopy and transmission electron microscopy.
Arch Oral Biol. 1981;26(12):977–82. DOI: 10.1016/0003-
may be used as possible relationship between the 9969(81)90106-0.
tooth wear and dentin hypersensitivity but 11. Heymann HO, Swift Jr EJ, Ritter AV. Sturdevant's art &
generalization of these association may still be science of operative dentistry. Elsevier Health Sciences;
2014 Mar 12.
incomplete since dentin hypersensitivity is of 12. Barbour ME, Parker DM, Allen GC, Jandt KD. Human
multifactorial etiology which is often incompletely enamel dissolution in citric acid as a function of pH in the
explained and characterized and several variables range 2.30<=pH<=6.30 - a nanoindentation study. Eur J
Oral Sci. 2003;111(3):258–62. DOI: 10.1034/j.1600-
may contribute to the differences in perception of 0722.2003.00039.x.
the patient. An understanding of the mechanisms 13. Lupi-Pegurier L, Muller M, Leforestier E, Bertrand M.,
and controlling factors in tooth enamel/ dentin wear Bolla M. In vitro action of Bordeaux red wine on the
microhardness of human dental enamel. Arch Oral Biol.
is therefore clinically important. Multifactorial 2003;48(2):141–5. DOI: 10.1016/s0003-9969(02)00206-
model analysis using several contributing factors 6.
responsible for the perception of painful sensation 14. Cuy JL, Mann AB, Livi KJ, Teaford MF, Weihs TP.
Nanoindentation mapping of the mechanical properties of
in the patients may be recommended with a larger human molar tooth enamel. Arch Oral Biol. 2002;47(4):281
sample. –91. DOI: 10.1016/s0003-9969(02)00006-7.
15. McCarthy PJ, McClanahan S, Hodges J, Bowles WR.
Frequency of localization of the painful tooth by patients
CONCLUSION presenting for an endodontic emergency. J Endod. 2010;36
Based on these findings, the answer to the clinical (5):801-5. DOI: 10.1016/j.joen.2009.12.035.
research question underlying this investigation is
that there exists a positive and significant
correlation between severity of tooth wear in the
cervical region of teeth and dentine hypersensitivity
perceived by the patients.
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