Pritchard (1965) has classified those osseous defects caused by periodontal disease as interproximal craters, inconsistent margins, hemisepta, furca invasions, intra- bony defects (infrabony defects with three osseous walls), and combinations of those defects.

What are osseous defects in periodontal disease?

Pritchard (1965) has classified those osseous defects caused by periodontal disease as interproximal craters, inconsistent margins, hemisepta, furca invasions, intra- bony defects (infrabony defects with three osseous walls), and combinations of those defects.

What is periodontal Intrabony defects?

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 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 is one wall defect in periodontics?

Which tooth has a dehiscence like alveolar process?

The first premolars showed a higher prevalence of dehiscence among posterior teeth in all subgroups. This is due to the relatively narrow alveolar bone width in this area compared with other posterior regions because the alveolar bone width narrows as it goes from posterior to anterior in both the maxilla and mandible.

What is dental root dehiscence?

Dehiscence and Fenestration (Fig. 18-8) A dehiscence is loss of alveolar bone on the facial (rarely lingual) aspect of a tooth that leaves a characteristic oval, root-exposed defect from the cementoenamel junction apically. The defect may be one or two millimeters long or extend the full length of the root.

How is dental dehiscence treated?

Many surgical techniques are introduced to enhance alveolar bone volume for placing the dental implants. Guided bone regeneration (GBR) is one such established surgical technique for correcting buccal dehiscence defects, along with the use of various barrier membranes for the same.