Prevalence of dentin hypersensitivity and related factors among adult patients visiting a dental school in andhra pradesh, southern India.
OBJECTIVE
Dentine hypersensitivity (DH) is a relatively common problem which may disturb the patient during eating, drinking, brushing and sometimes even breathing. It is a painful condition highly prevalent in the general adult population. The aim of this study is to determine the prevalence of DH and to examine some associated factors such as initiating stimuli among adult patients.


METHODS
The study is done under two phases. In the first phase a cross-sectional study was carried out in 665 study volunteers. Only 212 adult patients who were meeting the inclusion and exclusion criteria were conveniently selected to the study. A detailed demographic data and a structured questionnaire regarding type of response, sensitivity episodes, and duration of sensation, and stimulus for initiation were recorded by the examiner. Evidence of DH was confirmed by the use of air blast and water from the air-water jet of the dental chair and scratching the suspected tooth surfaces which is indicated by study subjects with a dental probe and noting the responses by using visual analog scale (VAS). In the second phase the related factors or characteristics of DH were surveyed. Statistical analysis preformed by using methods of descriptive statistics and Kruskal Wallis test.


RESULTS
The overall prevalence of DH was found to be 32%. The most common cause was consuming cold food or drinks (92%) and common predisposing factor was gingival recession (28%). Probe method yields a higher VAS score followed by Air at 10 seconds and Water at 10 seconds which is statistically significant.


CONCLUSIONS
The prevalence of DH in present study was 32% which is attributed to gingival recession as predisposing factor and cold stimuli.
Assistant Professor, Department of Public Health Dentistry, Drs. Sudha and Nageswara Rao Siddhartha Institute of Dental Sc. , Chinaoutpally, Gannavaram, Andhra Pradesh, India .
Guntipalli M
GM
Naidu
Assistant Professor, Department of Pediatric Dentistry, Drs. Sudha and Nageswara Rao Siddhartha Institute of Dental Sciences , Chinaoutpally, Gannavaram, Andhra Pradesh, India .
Chaitanya
C
Ram K
Assistant Professor, Department of Public Health Dentistry, Drs. S & NR Siddhartha Institute of Dental Sciences , Chinaoutpally, Gannavaram, Andhra Pradesh, India .
N R
NR
Sirisha
Assistant Professor, Department of Public Health Dentistry, C.K.S. Theja Institute of Dental Sciences , Tirupati, Andhra Pradesh, India .
Sandhya
S
Sree Y
Assistant Professor, Department of Pedodontics & Preventive Dentistry, St.Joseph College of Dental Sciences , Eluru, Andhra Pradesh, India .
Raj Kumar Chowdary
RK
Kopuri
Assistant Professor, Department of Conservative Dentistry and Endodontics, KLR Lenora Institute of Dental Sciences , Rajamundry, Andhra Pradesh, India .
Narayana Reddy
NR
Satti
Assistant Professor, Department of Public Health Dentistry, Lenora Institute of Dental Sciences , Rajahmundry, Andhra Pradesh, India .
Chandrasekar
C
Thatimatla
Dentine hypersensitivity; Gingival recession; Prevalence