Synthetic products, such as Resilon? and Guta-Flow?, reflect this reality. CONCLUSIONS Results of the present study showed that: (i) MC presented the highest percentage of GP, followed by the MF, OB, OBF and TH; (ii) all tested materials showed excessive percentages of waxes and resins; (iii) no correlation selleck chemicals llc was observed between chemical composition and thermal behavior; (iv) all the products showed thermal behavior typical of ?-phase GP and (iv) heating dental GP to 130��C causes physical changes. Footnotes Source of Support: Nil. Conflict of Interest: None declared
This 47-year-old male presented with a non-healing tongue ulcer of 3 months�� duration and associated pain for 2 months. He had initially noticed the asymptomatic ulcer on the ventral surface of tongue which had been increasing in size for the last 1 month.
He had smoked beedis for the last 20 years and had consumed alcohol daily for past 15 years. On examination, ulcers were noticed in the tongue and buccal mucosa. A solitary ulcer (3 cm �� 4 cm) with undermined edges and minimal induration was seen on right ventral surface of the tongue extending from the midline past the lateral border, up to the dorsal area of the anterior two-thirds of the tongue [Figure 1a]. The area adjacent to the tongue ulcer appeared to be lobulated. Another ulcer (0.5 cm �� 0.5 cm), also with an undermined edge was seen on the dorsal surface of tongue. In the left buccal mucosa, a single ulcer (1 �� 1 cm2) covered with pseudomembrane was present, extending 3 cm from the angle of the mouth and 5 mm below the occlusal plane [Figure 1b].
The patient was not aware of this ulcer. A single firm, non-tender (<1 cm) sub-mandibular lymph node was present on the right side. Figure 1a Tongue ulcers- a larger ventral ulcer and a smaller ulcer superiorly, both with undermined edges Figure 1b Left buccal mucosal ulcer covered with pseudomembrane Provisional diagnoses of squamous cell carcinoma and lichen planus were given for the lesions of the tongue and buccal mucosa, respectively. Incisional biopsy from the edge of tongue ulcer revealed proliferating epithelium with the underlying connective tissue exhibiting chronic inflammatory cell infiltrate without evidence of epithelial dysplasia or malignant invasion. Biopsy was repeated from a different area of the tongue ulcer for further review.
On examining serial sections, giant cells with peripherally arranged nucleus resembling Langerhans cells were appreciated along with caseous necrosis [Figure 1c]. Chest radiography revealed bilateral upper lobe infiltrates [Figure 1d], and sputum was positive for acid-fast bacilli. HIV was negative. With anti-tuberculous therapy the lesions Batimastat began to heal on a follow-up visit a month later. He was referred to local primary health care center for continuation of therapy.