The purpose of this study is to better understand oral wound healing in the aged participant following placement of platelet-rich fibrinogen (PRF). In this study, 12 participants requiring a posterior tooth extraction will be enroll: 6 participants aged 14-18, 6 participants aged 50-80. All will undergo a posterior tooth extraction with a small tissue specimen taken from the extraction site. Half of the participants will also have their blood drawn and platelet-rich fibrinogen placed in the extraction socket. Participants will return in 2 weeks for suture removal and another soft tissue sample. Participants will return at 3 months for a final post-operative radiograph. All soft tissue samples will undergo immunofluorescence.
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Cytokine Concentration
Timeframe: Baseline and two weeks post-extraction