{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,3]],"date-time":"2026-04-03T02:12:52Z","timestamp":1775182372868,"version":"3.50.1"},"reference-count":38,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2025,6,20]],"date-time":"2025-06-20T00:00:00Z","timestamp":1750377600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Oral Health"],"abstract":"<jats:sec><jats:title>Introduction<\/jats:title><jats:p>Previous studies have reported that genetic polymorphisms may impact the signs and symptoms of temporomandibular disorder (TMD). Therefore, this study aimed to investigate the association between polymorphisms in the <jats:italic>Dopamine Receptor D2<\/jats:italic> (<jats:italic>DRD2<\/jats:italic>) and <jats:italic>Ankyrin Repeat and Kinase Domain Containing 1<\/jats:italic> (<jats:italic>ANKK1<\/jats:italic>) genes and oral health-related quality of life of male patients with TMD.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This cross-sectional study included construction workers with at least one sign or symptom of TMD. The reduced version of the Oral Health Impact Profile questionnaire (OHIP-14) was used to assess oral health-related quality of life. Genomic DNA was used to genotype genetic polymorphisms in the locus 11q22-q23, one in <jats:italic>ANKK1<\/jats:italic> (rs1800497) and two in <jats:italic>DRD2<\/jats:italic> (rs6275 and rs6276), using real-time polymerase chain reaction. The total OHIP-14 score and those for each domain were compared among the genotypes using the Kruskal\u2013Wallis test and Dunn's test in the genotypic co-dominant model. The Mann\u2013Whitney test was used in the recessive model (alpha\u2009=\u20090.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The sample included a total of 114 male patients. OHIP-14 total score ranged from 0 to 33. Chronic pain (87.7%), followed by disc displacement (38.2%), was the most common sign and symptom observed. All the genetic polymorphisms assessed were within the Hardy\u2013Weinberg equilibrium. The \u201cHandicap\u201d domain (D6) was statistically associated with the genetic polymorphism rs1800497 in <jats:italic>ANKK1<\/jats:italic> (<jats:italic>p<\/jats:italic>\u2009=\u20090.008). The genetic polymorphism rs1800497 Taq1A in <jats:italic>DRD2\/ANKK1<\/jats:italic> was associated with oral health-related quality of life, as measured by the handicap domain in OHIP-14, in male patients with TMD.<\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion<\/jats:title><jats:p>This study showed that genetic polymorphisms can negatively impact the oral health-related quality of life, as measured by the handicap domain of the OHIP-14. The physical and emotional condition of patients, together with biological pathways, should receive more attention in future studies, and personalized treatment plans should be created to improve patients' quality of life.<\/jats:p><\/jats:sec>","DOI":"10.3389\/froh.2025.1561781","type":"journal-article","created":{"date-parts":[[2025,6,20]],"date-time":"2025-06-20T05:22:54Z","timestamp":1750396974000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Investigating the impact of polymorphisms in the ANKK1 and DRD2 genes on oral health-related quality of life in male patients with temporomandibular disorders"],"prefix":"10.3389","volume":"6","author":[{"given":"Samantha Schaffer Pugsley","family":"Baratto","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Allan","family":"Abuabara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D\u00e9bora Cristina Cardozo","family":"Bueno","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thalita de Paris","family":"Matos","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Camila Paiva","family":"Perin","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gisele Maria","family":"Correr","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C\u00e9sar Penazzo","family":"Lepri","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christian","family":"Kirschneck","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Flares","family":"Baratto-Filho","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Erika Calvano","family":"K\u00fcchler","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2025,6,20]]},"reference":[{"key":"B1","volume-title":"Temporomandibular Disorders (TMDs): Priorities for Research and Care","year":"2020"},{"key":"B2","first-page":"178","article-title":"22nd meeting on orofacial pain and temporomandibular disorders. 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