ArticleMedicina (Kaunas, Lithuania)2020
Palatal Wound Healing with Primary Intention in a Rat Model-Histology and Immunohistomorphometry.
Article in Medicina (Kaunas, Lithuania), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 11 citations in OpenAlex.
- Evaluation of the healing efficiency of mucoadhesive Ocimum basilicum solid lipid nano particles oral gel versus Oracure® gel in the treatment of induced buccal ulcer in rats.Journal of molecular histology · 2026Article
- Article
- A standardized rat model of maxillary anterior periodontal soft tissue defect for the evaluation of soft tissue graft materials.Frontiers in bioengineering and biotechnology · 2026Article
- Biosynthesized Silver Nanoparticles Modulate Inflammation in a Palatine Wound Model.Clinical and experimental dental research · 2025Article
- Oral Wound Healing: A Scoping Review and Proposal of a New Index for Palatal Mucosa.Journal of maxillofacial and oral surgery · 2024Article
- Orodispersible hyaluronic acid film delivery for oral wound healing in rats.Journal of dental sciences · 2022Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectivesSubepithelial connective tissue graft (SCTG) from the palate has been considered as the "gold standard" for the treatment of deep gingival recessions. A single-incision technique was reported to allow primary wound healing. A palatal single incision was performed in a rat model. The present study assessed the histology and histomorphometry of palatal wound healing following surgical closure with primary intention. MATERIALS AND
methodsTwenty-six 6-month-old male Wistar rats weighing 427-650 g. An incision was made on the maxillary palate. A full thickness flap was raised palatally, and then repositioned and sutured. Two experimental groups: S-Study group, I-Intact control group. Half of the animals were sacrificed 7 days and the remaining 14 days postoperatively. Outcome parameters included-epithelial gap; inflammatory infiltration; vascular fraction, expression of myofibroblasts and stem cell markers within the oral epithelium and stromal cells and physical properties of stromal collagen fibers. Investigations were performed at two time-points (7 and 14 days) during the wound healing process.
resultsThe epithelial gap closed completely after 14 days. The inflammatory reaction and vascular fraction were relatively low. Surgical trauma downregulated the expression of cytokeratin (CK) 14 and CK 15, which returned to normal after 14 days. Epithelial differentiation was mediated through upregulation of connective tissue sex- determining-region-Y-box2 (SOX2). Epithelial SOX2, CD34, alpha smooth muscle actin (αSMA) and physical properties of stromal collagen fibers were not influenced by the surgical trauma.
conclusionsSurgical trauma followed by palatal wound healing with primary intention in a rat model heals within 14 days. It induces minimal inflammatory infiltration and vascular proliferation. Epithelization is exerted through promotion of epithelial differentiation from stem cells by connective tissue SOX2.
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