What is an Intrabony defect?
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 periodontal defect?
Periodontitis is an inflammatory process affecting the perio- dontal tissues caused by multi-factorial origin. Among all the characteristic signs of periodontal disease, loss of support from alveolar boneis the one which usually represents theanatomical sequela to the progression of periodontitis apically.
What is new attachment in periodontics?
Consequently, periodontal regeneration (PR) supposes a complete recovery of the periodontal tissues in both height and function, that is, the formation of alveolar bone, a new connective attachment through collagen fibers functionally oriented on the newly formed cementum.
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 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.
What causes vertical bone loss in teeth?
The most common cause of bone loss is tooth loss left unreplaced, especially multiple teeth. Jawbone is preserved through the pressure and stimulus of chewing. When that is removed through tooth loss, the bone “resorbs” (reabsorbs) into the body.
What is GTR membrane?
GTR uses a resorbable or nonresorbable artificial membrane. These keep soft tissue from growing into the gaps. The membrane blocks the fast-growing soft tissue cells from growing into the site. This lets the slower-growing bone-making cells to grow there instead.
What is the most common Intrabony defect?
Periodontitis is the most common condition, which causes bony defects. Intrabony defects thought not as common as the horizontal bone loss pose a risk of disease progression and thus should be managed optimally; however, it does not mean all the intrabony defects can be treated and all the mobile teeth saved!
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.
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.