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jsmc-10013


HEALING OF Nd:YAG LASER INCISION IN TONGUE OF RABBITS COMPARED WITH SCALPEL INCISION, AN EXPERIMENTAL STUDY


Kamal Ahmad Saeed* and Ismaeel Ibrahim Mahmood**  


*   Department of Surgery, School of Medicine, Faculty of Medical Sciences, University of Sulaimani. 
** Shorsh Dental Centre, Sulaimani City.  
 

Submitted: 28/5/2011; Accepted: 15/10/2011Published 1/12/2011


ABSTRACT


Background 

The  incision  quality  and  healing  postoperatively  are  the main  goals  for  the  surgeon. Many  different  laser wavelengths have been used in the field of oral and maxillofacial surgery with many advantages, especially because of  their high properties (like selective physical properties,  the wave  length works  in a deeper skin 
structure and it can be applied for removal of vascular lesion).

Objective 

The aim of this study was to compare wound healing in the tongue of rabbits grossly and histologically, after a surgical procedure with Nd:YAG laser and scalpel. 

Methods 

Twelve healthy local breed Rabbits were used in this study; their average age was (2-6) months, divided in to 3  groups,  each  group  includes  4  rabbits.  Two  parallel  incisions  using Nd:YAG  laser  and  a  scalpel were performed  in  the  tongue of  each  rabbit. Power  level of 3 Watts was used  for  the  laser  incisions. Biopsies were taken from group I after 3 days, group II after 5 days and group III after 7 days.
 
Results 

Grossly, it was found that wound closure (healing) occurred in all of the wounds in scalpel incisions, while it did not occur in Nd:YAG laser incision at 3 and 5days, but seen at 7 days post operatively. Histologically, it was  found  that wound closure (healing) occurred  in all of  the wounds  in scalpel  incisions, while  it did not occur in Nd:YAG laser incision at 3, 5 and 7 days post operatively.

Conclusion 

When compared with traditional surgical procedure, several valuable characteristics of Nd:YAG  laser were found;  laser  produced  precise  surgical  incisions  that  did  not  require  suture, with  little  bleeding  tendency which  simplified  the  surgical  phase. The  disadvantage  of  laser  systems  is  represented  by  histologically evident  thermal  destruction  around  the  laser  beam  incision  and  thermal  damage  caused  delayed  healing process. Healing of  the scalpel  incision was faster  than Nd:YAG  laser incision because scalpel wounds did 
not cause any thermal damage to the incised tissues


KEYWORDS

 Healing, Nd: YAG laser incision, Tongue of rabbit, Scalpel incision.

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