CORRECTION OF DIFFERENT TYPES OF P.D.L. ATTACHMENT LOSS WITH OR WITHOUT BONE DEFECT BY USING A DOUBLE FACED MEMBRANE WITH ONE FACE CEMENTED TO THE ROOT SURFACE AND THE OTHER FACE IS CONNECTIVE TISSUE PLANTED

BACK GROUND :
When a (PDL plaque induced disease) progress and an attachment loss already happened it is hard to get an attachment between root surface and the surrounding connective tissue
this attachment we want to achieve should be local factor resistant enough not to fail after a short period is a great challenge until now to the periodontology researchers

THE REASEARCH GENERAL IDEA:
In this research we will try to get this local factors resistant new attachment by using a double sided membrane with one side cemented to the defected root surface by a non resorbable inert cement material (i got glass ionemer cement and 4-META/MMA-TBB resin in my mind now) the other face is spongy form meshwork which will be penetrated by the tissue and chemically attached to the tissue by the help of some biochemical mediators which will be discussed later
TYPES OF CONNECTIVE TISSUE THAT MAY PENETRATE AND ATTACH TO THE (TISSUE OPPOSED LAYER) OF THE MEMBRANE
(a)fibrous tissue: this will be favorable in the treatment of shallow pockets
(b)bone: this type will be favorable in case of deep pockets with bone loss to give support to the tooth
(c)if we are very unfortunate we will get an epithelial cells penetrating the meshwork and even in this case we will have a corrugated large surface area for attachment this will be better than the linear attached epithelium we get in the ordinary treatment ways
.........we can choose the type of tissue we want to get by the help of some growth factors that is specific to each type of cells we want to proliferate also combination of this technique with the (GTR) concept using absorbable mechanical barrier membrane should be tried
SUGGESTED FORMS OF MEMBRANE TO TISSUE ATTACHMENT
(A)MECHANICAL by using the porous spongy form meshwork facing the tissue. when this meshwork penetrated by any type of connective tissue mentioned before it will give a good mechanical attachment
(B)CHEMICAL : will be discussed later in the (chemistry) title of the research
MEMBRANE DESIGN

REQUREMENT OF THE ROOT CEMENTED LAYER:
Non resorbable,non tissue reactive, rough , impermeable not to pass the cementation material to the (tissue opposed layer ) causing un favorable inflammatory reaction ,able to be cemented with theCORRECTION OF DIFFERENT TYPES OF P.D.L. ATTACHMENT LOSS WITH OR WITHOUT BONE DEFECT BY USING A DOUBLE FACED MEMBRANE WITH ONE FACE CEMENTED TO THE ROOT SURFACE AND THE OTHER FACE IS CONNECTIVE TISSUE PLANTED

BACK GROUND :
When a (PDL plaque induced disease) progress and an attachment loss already happened it is hard to get an attachment between root surface and the surrounding connective tissue
this attachment we want to achieve should be local factor resistant enough not to fail after a short period is a great challenge until now to the periodontology researchers

THE REASEARCH GENERAL IDEA:
In this research we will try to get this local factors resistant new attachment by using a double sided membrane with one side cemented to the defected root surface by a non resorbable inert cement material (i got glass ionemer cement and 4-META/MMA-TBB resin in my mind now) the other face is spongy form meshwork which will be penetrated by the tissue and chemically attached to the tissue by the help of some biochemical mediators which will be discussed later
TYPES OF CONNECTIVE TISSUE THAT MAY PENETRATE AND ATTACH TO THE (TISSUE OPPOSED LAYER) OF THE MEMBRANE
(a)fibrous tissue: this will be favorable in the treatment of shallow pockets
(b)bone: this type will be favorable in case of deep pockets with bone loss to give support to the tooth
(c)if we are very unfortunate we will get an epithelial cells penetrating the meshwork and even in this case we will have a corrugated large surface area for attachment this will be better than the linear attached epithelium we get in the ordinary treatment ways
.........we can choose the type of tissue we want to get by the help of some growth factors that is specific to each type of cells we want to proliferate also combination of this technique with the (GTR) concept using absorbable mechanical barrier membrane should be tried
SUGGESTED FORMS OF MEMBRANE TO TISSUE ATTACHMENT
(A)MECHANICAL by using the porous spongy form meshwork facing the tissue. when this meshwork penetrated by any type of connective tissue mentioned before it will give a good mechanical attachment
(B)CHEMICAL : will be discussed later in the (chemistry) title of the research
MEMBRANE DESIGN

REQUREMENT OF THE ROOT CEMENTED LAYER:
Non resorbable,non tissue reactive, rough , impermeable not to pass the cementation material to the (tissue opposed layer ) causing un favorable inflammatory reaction ,able to be cemented with the