000002138 001__ 2138
000002138 005__ 20260529135453.0
000002138 0247_ $$2DOI$$a10.6083/M4K935T5
000002138 037__ $$aETD
000002138 245__ $$aDifferences in periodontal health mesial to the mandibular first molar following first vs. second premolar extractions for orthodontic purposes
000002138 260__ $$bOregon Health and Science University
000002138 269__ $$a2006
000002138 336__ $$aThesis
000002138 502__ $$bM.S.
000002138 502__ $$gOrthodontics
000002138 520__ $$aThis study evaluated the periodontal effects of mandibular second premolar extraction compared to first premolar extraction in orthodontic patients. Participants (ages 16–31) were assessed at least two years post-treatment for periodontal health indicators. Patients with second premolars extracted exhibited significantly worse outcomes, including greater probing depth, attachment loss, bleeding, plaque accumulation, and food impaction (p<0.05). In contrast, first premolar extraction patients remained periodontally healthy. The findings suggest that contact between the mandibular first premolar and first molar following second premolar extraction may increase the risk of localized periodontal breakdown.
000002138 540__ $$fCC BY
000002138 542__ $$fIn copyright - single owner
000002138 650__ $$aPeriodontal Index$$023824
000002138 650__ $$aBicuspid$$015521
000002138 650__ $$aMolar$$022381
000002138 650__ $$aOrthodontics$$023308
000002138 650__ $$aTooth Extraction$$027181
000002138 692__ $$aDepartment of Orthodontics$$041435
000002138 7001_ $$aCarter, Chris$$uOregon Health and Science University$$041354
000002138 8564_ $$92b345959-69e5-40e9-afa3-a818154cc401$$s785650$$uhttps://digitalcollections.ohsu.edu/record/2138/files/2867_etd.pdf$$ePublic$$2b0391d23d96de600b1a2cd986faf1504$$31
000002138 901__ $$a<p>These documents are archival records. They are retained for historical reference only. </p><p><b>Need an accessible version? Use the ‘Get Accessible Copy’ link above.</b></p>
000002138 905__ $$a/rest/prod/86/23/hx/85/8623hx85s
000002138 909CO $$ooai:digitalcollections.ohsu.edu:2138$$pstudent-work
000002138 956__ $$aGet Accessible Copy$$uhttps://ohsu.libwizard.com/f/requestaccessibledocument
000002138 980__ $$aTheses and Dissertations