Study
Country
n
Study type
Method of clinical assessment
Setting
Prevalence (%)
Peak of age
M-F ratio
Commonly affected teeth
% with GRa
Clayton et al. (2002)
UK
250
Qb
NAj
GDPf
50 %
3rd decade
1:1
Mand right sextant
NA
Gillam et al. (2001)
UK and Korea
557
Q
NA
GDP
52–55.4 %
3rd–4th decades
NA
NA
NA
Gillam et al. (1999)
UK
277
Q
NA
GDP
52 %
3rd decade
1:1.4
NA
NA
Colak et al. (2012a)
Turkey
1,463
Q
NA
University students
8.4 %
NA
1:1.2
NA
NA
Rane et al. (2013)
India
960
Q + CE
AB
Dental hospital
42.5 %
4th decade
1.6:1
Lower anterior teeth
NA
Bamise et al. (2007)
Nigeria
2,165
Q + CEc
ABd/probing
University
1.34 %
4th decade
1.4:1
Molars
12.8 %
Rees and Addy (2004)
UK
5,477
Q + CE
AB/PDAe
GDP
2.8 %
4th decade
1:1.5
Maxg 1st molars
93 %
Taani and Awartani (2001)
Saudi Arabia
259
Q + CE
AB/PDA
GDP
42.4 %
4th decade
1:4
Max molars and mand anteriors
5 %
Fischer et al. (1992)
Brazil
635
Q + CE
AB/probing
Marine dental clinic
17 %
M, 6th decade; F, 3rd decade
1:1
Incisors and premolars
NA
Flynn et al. (1985)
Scotland
369
Q + CE
CWMRk/probing
University
8.7 %
4th decade
1:1
Premolars
NA
Liu et al. (1998)
Taiwan
780
Q + CE
AB/probing
University
32 %
NA
1:1
Premolars and molars
23 %
Amarasena et al. (2011)
Australia
12,692
Q + CE
NA
GDP
9.1 %
4th–5th decades
1:1.5
Max premolars and molars
39 %
Chrysanthakopoulos (2011)
Greece
1,450
Q + CE
AB
GDP
18.2 %
5th decade in Males
7th decade in Females
1:1.25
Premolars
85.9 %
Ye et al. (2012)
China
2,120
Q + CE
AB
GDP
34.1 %
5th decade
1:1.5
Premolars
84.3 %
Tengrungsun et al. (2012)
Thailand
420
Q + CE
AB
University
30.7 %
4th decade
1:2.4
1st molar
NA
Bahsi et al. (2012)
Turkey
1,368
Q + CE
AB/probing
GDP
5.3 %
5th decade
1:2
Max premolars
88.4 %
Colak et al. (2012b)
Turkey
1,169
Q + CE
AB
University
7.6 %
5th decade
1:1.5
Max premolars
95.7 %
Dhaliwal et al. (2012)
Punjab, India
650
Q + CE
AB
Screening participants in villages
25 %
6th decade
1:1.6
Mand incisors
NA
Cunha-Cruz et al. (2013)
USA
787
Q + CE
AB
GDP
12.3 %
18–44
1:2.6
Premolars and molars
85.6 %
Que et al. (2013)
China
1,023
Structure interview + CE
AB
General population
27.1 %
7th decade
1.06:1
Premolars
15.5 % for the age group of 60–69
Scaramucci et al. (2014)
Brazil
300
Q + CE
AB/probing
University
46 %
NA
1:2.56
NA
NA
Al-Khafaji (2013)
UAE
204
Q + CE
AB
GDP
27 %
3rd decade
1.3:1
Lower anterior
15 %
Moreover, the nature of the questions in the survey may also influence the reported prevalence values. Nonspecific questions that identify pain or sensitivity, relying on the participant’s own pain threshold as a trigger for identifying a positive result, will exclude patients who do not perceive their DH to be a problem that requires attention (Cunha-Cruz et al. 2013).
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