What is an Intrabony defect?

The intrabony defect is a specific osseous defect with definite morphology; it is not just any defect with the base of a perio- dontal pocket apical to the alveolar crest. The intrabony defect is surrounded by bony walls on three sides with the tooth root forming the fourth wall.

What is a periodontal defect?

Periodontal disease results in loss of supporting structures including alveolar bone. When the periodontal lesion results in the development of an intrabony defect, the base of the pocket is apical to the wall of the bone. Intrabony defects can be further classified as 1-, 2- or 3-walled defects.

What are Hemiseptal defects?

Hemiseptal defects i.e., vertical defects in the presence of adjacent roots and where half of a septum remains on the tooth, represents a special case of one-wall defects and the treatment is always a challenge despite the various periodontal regenerative therapies.

What is Infrabony?

A periodontal pocket with its base apical to the crest of the alveolar bone. Infrabony defects may have one, two, or three bone walls.

What is the most common Intrabony defect?

Periodontitis is the most common condition, which causes bony defects.

What is a three wall defect?

When the soft tissue which lines the pocket is surrounded by three walls of bone, the defect is described as a three-wall defect. If the defect is lined by only two walls of bone, the defect is a two-wall defect. If the defect is lined by only one wall of bone, then it is known as a one-wall defect.

How many walls are present in the three wall defects?

When the soft tissue which lines the pocket is surrounded by three walls of bone, the defect is described as a three-wall defect. If the defect is lined by only two walls of bone, the defect is a two-wall defect.

What is Suprabony defect?

Suprabony means above the bone crest. When periodontal infection results in the development of an intrabony defect, the base of the pocket is apical to (or below) a wall of bone. By contrast, when a suprabony pocket develops, the base of the defect is coronal to the crest above the bone.

What is Clindoral used for?

Clindoral is a periodontal filler that contains 2 percent clindamycin hydrochloride in a biodegrading gel matrix that releases clindamycin over seven to 10 days from a single application (Photos 1-4).

What causes Intrabony defects?

Periodontitis causes attachment and underlying bone loss, creating alterations in its architecture resulting in intrabony defects of varying types. Karn et al9 in 1984 described the terms moat, trench, ramp plane and crater to explain the type of intrabony defect arising from periodontal destruction of bone.

What’s the difference between intrabony and infrabony defects?

Goldman and Cohen then classified infrabony defects according to the location and number of osseous walls remaining around the pocket. It has been suggested that the term “intrabony” means “within or inside the bone”, while “infrabony” means “below the crest of bone” (Weinberg & Eskow, 2000 ).

Which is the correct definition of the infrabony pocket?

infrabony pocket (intra-alveolar pocket) (intrabony pocket) a periodontal pocket in which the bottom is apical to the level of the adjacent alveolar bone.

How are Supraosseous defects different from infrabony defects?

Classically, periodontal defects have been differentiated based on bone resorption patterns into “supraosseous” (“suprabony”) and “infraosseous” (“infrabony”) (Goldman & Cohen, 1958 ). These authors defined suprabony defects as those where the base of the pocket is located coronal to the alveolar crest.

Are there any literature on periodontal infrabony defects?

A search was conducted in 3 electronic databases for publications reporting clinical and radiographic outcomes of periodontal intra‐bony defects after regenerative therapy, divided by defect morphology. The initial search resulted in 4487 papers, reduced to 143 after first and second screening.