Periodontal Osseous Defects

Periodontal Osseous Defects

Enumerate osseous defects. Define resective osseous surgery. Write in detail about osseous resective surgery.
Answer.

Enumeration of Osseous Defects

According to Goldman & Cohen (1958)

• One-walled defect
• Two-walled defect
• Three-walled defect
• Combined defect

According to Glickman (1964)

• Osseous/interdental craters
• Hemiseptal defects
• Infrabony defects
• Bulbous bone contour
• Inconsistent margins and ledges (plateau like bony margins)
• Reversed architecture

According to Prichard (1967)

• Interproximal crater
• Inconsistent margins
• Hemisepta
• Furcation invasion
• Intrabony defects
• Combination

According to Manson and Nicholson

• Thickened margins
• Interdental crater
• Hemiseptum
• Infrabony defect with 3 osseous walls
• Infrabony defect with 2 osseous walls
• Infrabony defect with one osseous wall other than hemiseptum
• Marginal gutter
• Furcation involvement
• Irregular bony margins
• Dehiscence
• Fenestration
• Exostosis

Resective Osseous Surgery

It is the procedure designed to restore the form of preexisting alveolar bone to the level existing at the time of surgery or slightly more apical to this level is known as resective osseous surgery.