Surgical element and method for selective tissue regeneration
AssigneeGuidor AB
InventorDan Lundgren
Life of this patent
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Abstract
A surgical element for guided and controlled tissue regeneration and method for selective tissue regeneration. The elements disclosed include embodiments containing protrusions on at least one side of a sheet of element material for separating the implanted element from an adjacent surface, and other embodiments comprising multiple layers of element material with internal spacer means separating the layers. Also disclosed is a method for treating supporting tissues adjacent to teeth and dental implants, the method comprising the use of a surgical element for selected influence on the growth of alveolar bone and periodontal ligament tissues.
Claims26
An article adapted for selectively-guided tissue regeneration in the treatment of a periodontal defect adjacent to the root of a tooth, said article comprising
- (a) an element comprising a first sheet portion and a second sheet portion, said first portion having a first surface adapted to face towards said root, and having an outer surface, said first portion being adapted to be disposed adjacent said root at the site of said defect, said first portion having a coronal end and an apical end;
- (b) said second portion having an inner surface and an outer surface, said inner surface being opposite and essentially parallel to said outer surface of said first portion;
- (c) at least one of said portions comprising a plurality of perforations;
- (d) said element further comprising first spacing means located between said outer surface of said first portion and said inner surface of said second portion, said first spacing means being adapted to maintain said first portion and said second portion in essentially parallel relationship, thereby creating a first space, said first space being adapted to permit ingrowth of new connective tissue thereinto through said perforations;
- and
- (e) said element further comprising second spacing means, said second spacing means being adapted to create and maintain a second space between said root and said first surface, said second space having sufficient width perpendicular to the longitudinal axis of said root to permit ingrowth into said second space of periodontal ligament tissue.
An article adapted for selectively-guided tissue regeneration in the treatment of a periodontal defect adjacent to the root of a tooth, said article comprising:
- an element comprising a first sheet portion and a second sheet portion, said first sheet portion having a first surface adapted to face towards said root, and having an outer surface, said first sheet portion being adapted to be disposed adjacent said root at the site of said defect, said first portion having a coronal and an apical end;
- said second sheet portion having an inner surface and an outer surface, said inner surface being opposite and essentially parallel to said outer surface of said first sheet portion;
- at least one of said portions comprising a plurality of perforations;
- said element further comprising a plurality of first spacers located between said outer surface of said first sheet portion and said inner surface of said second sheet portion, said first spacers being adapted to maintain said first sheet portion and said second sheet portion in essentially parallel relationship, thereby creating a first space, said first space being adapted to permit ingrowth of new connective tissue thereunto through said perforations;
- and said element further comprising a plurality of second spacers affixed to said inner surface of said first sheet portion and adapted to create and maintain a second space between said root and said first surface, said second space having sufficient width perpendicular to the longitudinal axis of said root to permit ingrowth into said second space of periodontal ligament tissue.
Dependencies are inferred from the claim text.