Histology of laser- and high-frequency-electrosurgical incisions in the palate of pigs.
The histological effects of CO2-laser-, Nd-YAG-laser- and electrosurgical incisions were investigated in the oral mucosa of pigs. Laser- as well as electrosurgery caused necrosis by thermal effects. Undermining vacuolisation in the stratum basale and denaturation of collagenous fibers in the lamina propria were typical findings. The CO2-laser incisions were trough-like with a sharply bordered coagulation. The Nd-YAG-laser produced exclusively coagulation but no incision. Electrosurgery yielded radiating coagulation and the best ratio of depth of incision to width of coagulation.
Dept of Parodontology, Zentrum ZMK, University Göttingen, Germany.
R
R
Mausberg
H
H
Visser
T
T
Aschoff
K
K
Donath
W
W
Krüger
D000538:Aluminum Silicates; D000818:Animals; D002245:Carbon Dioxide; D002467:Cell Nucleus / Q000648:ultrastructure; D003094:Collagen; D003593:Cytoplasm / Q000648:ultrastructure; D004598:Electrosurgery; D004848:Epithelium / Q000473:pathology / Q000601:surgery; D006358:Hot Temperature; D053685:Laser Therapy; D009061:Mouth Mucosa / Q000473:pathology* / Q000601:surgery*; D009336:Necrosis; D009354:Neodymium; D010159:Palate / Q000473:pathology* / Q000601:surgery*; D013552:Swine; D014617:Vacuoles / Q000648:ultrastructure; D015019:Yttrium
D000538:Aluminum Silicates; D002245:Carbon Dioxide; D009354:Neodymium; D015019:Yttrium; D003094:Collagen