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The formocresol technique in young permanent teeth. A histopathologic study.

M A Muñiz, A Keszler, F V Dominguez

    Oral Surgery, Oral Medicine, and Oral Pathology
    |June 1, 1983
    PubMed
    Summary
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    Formocresol treatment in young permanent teeth showed significant fibrosis and osteodentin formation, indicating a healing response. Further time is needed to confirm complete biologic scar healing after formocresol pulpotomy.

    Area of Science:

    • Endodontics
    • Pediatric Dentistry
    • Histopathology

    Background:

    • Formocresol is a widely used medicament in vital pulp therapy for young permanent teeth.
    • Understanding the long-term tissue response to formocresol is crucial for clinical decision-making.

    Purpose of the Study:

    • To evaluate the histopathologic changes in young permanent teeth treated with formocresol and extracted at various time points.
    • To compare the tissue response in formocresol-treated teeth with a control group.

    Main Methods:

    • Histopathologic analysis of 26 formocresol-treated teeth and 13 control teeth extracted 5-20 months post-treatment.
    • Radiographic examination pre- and post-treatment.
    • Comparison of inflammation, necrosis, fibrosis, and osteodentin formation in root canals.

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    Main Results:

    • Formocresol-treated teeth exhibited predominant fibrosis and osteodentin in the apical third, with decreasing inflammation and necrosis apically.
    • Control teeth showed significant inflammation and/or necrosis throughout the root canal.
    • The observed changes suggest a biologic scar healing process.

    Conclusions:

    • Formocresol induces a healing response characterized by fibrosis and osteodentin formation in young permanent teeth.
    • The observed tissue changes represent an evolutionary stage of biologic scar healing.
    • Complete resolution may require a longer observation period (10-12 months).