Table 2 Characteristics of the included studies
Author, Year | State/ India Location of the study | Total sample size (N) | Study population | Age group | Measurement of Quality of Life (QoL) | Measurement of Oral disease |
|---|---|---|---|---|---|---|
Dental caries | ||||||
 Abhishek 2014 [73] | Karnataka | 172 | Police Personnel | 20–60 years | OHIP-14 | WHO-1997 |
 Ajai 2020 [57] | Uttar Pradesh | 100 | Elderly |  >  = 60 years | OHIP-14 | WHO-1997 |
 Appukuttan 2016 [58] | Tamil Nadu | 199 | General Population | 20–70 years | GOHAI | Not mentioned |
 Babu 2017 [59] | Karnataka | 300 | Childrens | 2–6 years | ECOHIS | WHO-1997 |
 Baiju RMP 2019 [38] | Kerala | 400 | Adolescents | 15–18 years | OHIA | DMFT |
 Basavaraj 2014 [60] | Uttar Pradesh | 900 | Childrens | 12–15 years | Child- OIDP | DMFT |
 Ghanghas 2019 [61] | Haryana | 469 | Childrens | 3–5 years | ECOHIS | deft |
 Jaggi 2019 [62] | New Delhi | 750 | Childrens | 4–6 years | ECOHIS | WHO- 2013 |
 Jain 2012 | Gujarat and Rajasthan | 1441 | General population | 25–54 years | OHIP-14 | WHO-1997 |
 Kumar 2015 [41] | Madhya Pradesh | 690 | Childrens | 12–15 years | OIDP | DMFT |
 Kumar 2018 [55] | Kerala | 281 | Childrens | 12 years | COHIP | DMFT |
 Nagarajappa 2015 [43] | Rajasthan | 800 | General Population | 17–24 years | OIDP | WHO-1997 |
 Rekhi 2015 [77] | Uttarakhand | 368 | Elderly |  >  = 60 years | GOHAI | WHO-1997 |
 Rekhi 2018 [66] | New Delhi | 500 | Elderly |  >  = 60 years | GOHAI | DMFT |
 Saxena 2018 [48] | Uttar Pradesh | 414 | School teachers |  > 20 years | OIDP | WHO-1997 |
 Sharna 2019 [68] | Tamil Nadu | 238 | Childrens | 6–72 mths | ECOHIS | PUFA |
 Shivakumar 2018 [69] | Maharashtra | 150 | Elderly |  >  = 60 years | GOHAI | WHO-1997 |
 Singh N 2020 [50] | Uttar Pradesh | 200 | Childrens | 3–5 years | Michigan oral health related quality of life scale | deft-Index |
 Sreela 2020 [51] | Kerala | 1552 | General Population | 18–74 years | OHIP-14 | WHO-2013 |
 Usha 2012 [53] | Karnataka | 900 | Childrens | 12–15 years | OIDP | DMFT |
Gingivitis | ||||||
 Appukuttan 2016 [58] | Tamil Nadu | 199 | General Population | 20–70 years | GOHAI | Not mentioned |
 Baiju RMP 2019 [38] | Kerala | 400 | Adolescents | 15–18 years | OHIA | Gingival index |
 Marya 2020 [42] | Haryana | 1200 | Elderly |  >  = 60 years | GOHAI | WHO-2013 |
 Shivakumar 2018 [69] | Maharashtra | 150 | Elderly |  >  = 60 years | GOHAI | WHO-1997 |
 Singh 2020 [79] | Uttar Pradesh | 395 | Childrens | 11–14 years | CPQ 11–14 | Gingival index |
 Sreela 2020 [51] | Kerala | 1552 | General Population | 18–74 years | OHIP-14 | WHO-2013 |
Periodontal Disease- Loss of Attachment | ||||||
 Abhishek 2016 [74] | Karnataka | 172 | Police Personnel | 20–60 years | OHIP-14 | WHO-1997 |
 Marya 2020 [42] | Haryana | 1200 | Elderly |  >  = 60 years | GOHAI | WHO-2013 |
 Nagarajappa 2015 [43] | Rajasthan | 800 | General Population | 17–24 years | OIDP | WHO-1997 |
 Rajagopalachari 2015 [46] | Kerala | 212 | General Population | 24–60 years | OHIP-14 | WHO-1997 |
 Rekhi 2016 [47] | New Delhi | 500 | Elderly |  >  = 60 years | GOHAI | WHO-1997 |
 Sanadhya 2015 [67] | Rajasthan | 1200 | General population | 20–79 years | OHIP-14 | WHO-1997 |
 Saxena 2018 [48] | Uttar Pradesh | 414 | School teachers |  > 20 years | OIDP | WHO-1997 |
 Sreela 2020 [51] | Kerala | 1552 | General Population | 18–74 years | OHIP-14 | WHO-2013 |
 Yadav 2019 [72] | Haryana | 450 | General Population | 30–60 years | OHIP-14 | Clinical Attachment Loss |
Periodontal Disease -Community Periodontal Index | ||||||
 Abhishek 2016 [74] | Karnataka | 172 | Police Personnel | 20–60 years | OHIP-14 | WHO-1997 |
 Ajai 2020 [57] | Uttar Pradesh | 100 | Elderly |  >  = 60 years | OHIP-14 | WHO-1997 |
 Marya 2020 [42] | Haryana | 1200 | Elderly |  >  = 60 years | GOHAI | WHO-2013 |
 Nagarajappa 2015 [43] | Rajasthan | 800 | General Population | 17–24 years | OIDP | WHO-1997 |
 Rajagopalachari 2015 [46] | Kerala | 212 | General Population | 24–60 years | OHIP-14 | WHO-1997 |
 Rekhi 2016 [47] | New Delhi | 500 | Elderly |  >  = 60 years | GOHAI | WHO-1997 |
 Sanadhya 2015 [67] | Rajasthan | 1200 | General population | 20–79 years | OHIP-14 | WHO-1997 |
 Saxena 2018 [48] | Uttar Pradesh | 414 | School teachers |  > 20 years | OIDP | WHO-1997 |
 Shivakumar 2018 [69] | Maharashtra | 150 | Elderly |  >  = 60 years | GOHAI | WHO-1997 |
 Sreela 2020 [51] | Kerala | 1552 | General Population | 18–74 years | OHIP-14 | WHO-2013 |
Malocclusion | ||||||
 Appukuttan 2016 [58] | Tamil Nadu | 199 | General Population | 20–70 years | GOHAI | Not mentioned |
 Babu 2017 [59] | Karnataka | 300 | Childrens | 2–6 years | ECOHIS | WHO-1997 |
 Baiju RMP 2019 [38] | Kerala | 400 | Adolescents | 15–18 years | OHIA | DAI |
 Basavaraj 2014 [60] | Uttar Pradesh | 900 | Childrens | 12–15 years | Child- OIDP | DAI |
 Manjith 2012 [64] | Puducherry | 200 | Childrens | 11–15 years | OHIP- 14 | IOTN |
 Mary 2019 [56] | Tamil Nadu | 710 | Adolescents | 17–23 years | OHIP- 14 | IOTN |
 Nagarajappa 2015 [43] | Rajasthan | 800 | General Population | 17–24 years | OIDP | WHO-1997 |
 Siluvai 2015 [49] | Karnataka | 900 | General Population | 13–19 years | OHIP-14 | DAI |
 Singh 2019 [80] | New Delhi | 520 | Childrens | 12–15 years | OHIP-14 | IOTN |
 Vinayakamoorthy 2020 [54] | Karnataka | 768 | Childrens | 12–15 years | FIS | DAI |
Dental Fluorosis | ||||||
 Nagarajappa 2015 [43] | Rajasthan | 800 | General Population | 17–24 years | OIDP | WHO-1997 |
 Shyam 2020 [70] | Haryana | 2200 | Childrens | 11–14 years | CPQ 11–14 | TFI |
Bruxism | ||||||
 Suguna 2020 [71] | Tamil Nadu | 72 | Childrens | 6–12 years | OHIP-14 | Interview |
 Thetakala 2018 [52] | Karnataka | 212 | General Population |  >  = 18 years | OHIP-14 | criteria of American Academy of Sleep Medicine |
Functional Edentulism | ||||||
 Neelamana 2020 [65] | Kerala | 280 | Elderly |  > 60 years | GOHAI | WHO-2013 |
 Pushpanjali 2013 [45] | Karnataka | 218 | Elderly |  > 60 years | OHIP-14 | WHO-1997 |
 Rekhi 2015 [77] | Uttarakhand | 368 | Elderly |  >  = 60 years | GOHAI | WHO-1997 |
 Rekhi 2018 [66] | New Delhi | 500 | Elderly |  > 60 years | GOHAI | WHO-1997 |
 Shetty 2013 [78] | Maharashtra | 110 | Elderly |  >  = 60 years | GOHAI | WHO-1997 |
 Shivakumar 2018 [69] | Maharashtra | 150 | Elderly |  >  = 60 years | GOHAI | WHO-1997 |
Edentulism | ||||||
 Ajai 2020 [57] | Uttar Pradesh | 100 | Elderly |  >  = 60 years | OHIP-14 | WHO-1997 |
 Appukuttan 2016 [58] | Tamil Nadu | 199 | General Population | 20–70 years | GOHAI | Not mentioned |
 Marina 2019 [76] | Tamil Nadu | 300 | Elderly | 60–85 years | WHOQOL-old | Not mentioned |
 Shivakumar 2018 [69] | Maharashtra | 150 | Elderly |  >  = 60 years | GOHAI | WHO-1997 |
Prosthetic need | ||||||
 Joseph 2016 [63] | Kerala | 539 | Elderly |  >  = 60 years | OHIP-14 | WHO-1997 |
 Nagarajappa 2015 [43] | Rajasthan | 800 | General Population | 17–24 years | OIDP | WHO-1997 |
 Pillai 2015 [44] | New Delhi | 946 | Elderly |  > 60 years | GOHAI | WHO-1997 |
 Rekhi 2018 [66] | New Delhi | 500 | Elderly |  > 60 years | GOHAI | WHO-1997 |
 Shetty 2013 [78] | Maharashtra | 110 | Elderly |  >  = 60 years | GOHAI | WHO-1997 |
 Shivakumar 2018 [69] | Maharashtra | 150 | Elderly |  >  = 60 years | GOHAI | WHO-1997 |