Classically, primary closure of a wound is preferred over secondary healing. In the mouth, primary closure is not always possible. Some of the oral tissues, for example the mucosa of the hard palate and attached gingivae, are tightly bound to their underlying bone and cannot be easily mobilised to provide primary closure. In lower wisdom tooth surgery, primary closure of the mucoperiosteal flap has been associated with increased postoperative pain and swelling compared to flap repositioning and secondary healing.3 Dressing materials have been advocated and applied to wounds in the mouth in order to reduce postoperative pain, promote healing and prevent infection.4,5 They can also have detrimental effects on the oral tissues. Nerve damage, local tissue reactions and toxicity have been reported.6-8 It is therefore important to be aware of the constituents of these materials, their uses and the potential for adverse reactions. Some of the commonly used wound dressing materials and their effects on oral tissues are discussed below.
Today, is not about just applying stitches and gauze, but has become far more sophisticated with skin bioengineering, anti-scarring strategies and much more. However, there are several limitations with existing wound dressing materials that can delay the healing of a wound. Recently, a group of scientists developed a new material for wound dressing applications that can help heal wounds faster. The scientists tested this biomaterial on the wounds of mice and found that their wounds healed completely within two weeks, faster than existing commercial dressings.
A typical transverse cross-section of a sheet of wound dressing material in accordance with the present invention is illustrated in the accompanying drawing which is a photograph of 85 times magnification. The photograph shows a first region A of the collapsed, open cells which intercommunicate with one another, and the more dense region C behind the cellular region, with an intermediate region B in which there is a gradual transition from the cellular region A to the more dense region C. In use, the lower surface of cellular region A as illustrated is applied to the wound to be healed.
It is believed that the process used to prepare the wound dressing material of the present invention causes the initial formation of a "foamed" region in the layer of polymerising materials, which foamed region consists of open cells which communicate with one another. On completion of curing, a non-rigid structure is obtained which "collapses" as air escapes from the intercommunicating cells through the outer surface of the cured polymer.
|Packaging Details:||medical wound dressing material
Packed as General Export Standard Carton
|Delivery Detail:||medical wound dressing material normal needs 15-20days|