Hyperplastic granuloma-like lesions in three cases with partial thickness burn wounds.
Hyperplastic granuloma-like lesions in three cases with partial thickness burn wounds Hong-Liang Zhao *, Lian-Gui Li , Lian-kui Zhao , Tai-Ping Hu b a Burns and Plastic Department, Staff Hospital of Han Dan Iron and Steel Group, 17, Qian Jin street, Fu xing District, Han Dan, He Bei 056003, People’s Republic of China b Burns and Plastic Department, Staff Hospital of ShiJiaZhuang Iron & Steel Group, People’s Republic of China
Granuloma Faciale Successfully Treated With Long‐Pulsed Tunable Dye Laser
BACKGROUND Granuloma faciale has been treated in the past with different modalities but the majority have had the risk of scarring. OBJECTIVE Based on the principle of selective photothermolysis, we considered using the newer long-pulsed tunable dye laser for the treatment of granuloma faciale to target the vessels and minimize scarring. METHODS Confirmation of the diagnosis by a punch biopsy of the lesion was followed by three treatments on separate occasions 6 weeks apart with the long-pulsed tunable dye laser. RESULTS There was significant flattening of the lesions after two treatments, with complete clearing after the third. No scarring was detectable and there was no recurrence in the 9-month follow-up. CONCLUSION We conclude that granuloma faciale may be successfully treated with the long-pulsed tunable dye laser with minimal risk of scarring, especially in cosmetically sensitive areas.
Microstructure of the solder-casting zone in bridges of dental gold alloys.
The composition and structure were studied in the cast and in the solder of bridges which had failed clinically. Both materials were gold alloys but with different contents of Pt, Ag and Zn. The metallographic investigation revealed defects mostly in the solder, situated in the subsurface layer. SEM studied of the fracture surface revealed large porosites and a structure of dense parallel lines--striations--, indicating that the material had failed from fatigue. The materials in the fractured bridges were identified by micro-probe measurements. It was stated that cast material and solder material used together, were of different composition.