What are osseous defects?

Osseous defects are the result of extensive bone loss, commonly in the area of the hip joint.

What is the most common osseous defect?

Interproximal surfaces of the first and second molars had the highest prevalence of bone defects. Crater was the most common defect type (26.50%), followed by circumferential (23.40%) and 3-wall defect (20.08%).

What are Infrabony defects?

Infrabony defects are one of the morphological types of alveolar bone defects that can be observed during periodontitis. Recent approaches for the treatment of infrabony defects, combine advanced surgical techniques with platelet-derived growth factors.

What is a Hemiseptal defect?

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 a critical sized bone defect?

Defining “Critical” in Bone Defect Size

In general, a “critically-sized” defect is regarded as one that would not heal spontaneously despite surgical stabilization and requires further surgical intervention, such as autologous bone grafting. 1.

What is periodontal bony defects?

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 causes Intrabony defects?

Periodontitis causes attachment and underlying bone loss, creating alterations in its architecture resulting in intrabony defects of varying types.

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 Coronoplasty?

Coronoplasty is the procedure that selectively reduces the supracontacts, thus relieving patient of the same. It is used to provide better stability and occlusion in a permanent dentition noninvasively.

What type of bony defect has the best prognosis?

If the defect is lined by only one wall of bone, then it is known as a one-wall defect. Bone defects which have the best prognosis for bone fill are three-wall defects. The increased number of walls and the height of these walls lends an increased bone matrix on which new bone can grow.

What is combined osseous defect?

Combined defects: The apical part of combined defect will. usually have higher number of alveolar bone walls than. the total number of walls which are present coronally. The depth of the defect: Defect depth is measured from. Table 2: Radiographic classification of osseous defects.

What causes Intrabony defects?

Periodontitis causes attachment and underlying bone loss, creating alterations in its architecture resulting in intrabony defects of varying types.

What is aggressive periodontitis?

Abstract. Aggressive periodontitis is a destructive disease characterized by the following: the involvement of multiple teeth with a distinctive pattern of periodontal tissue loss; a high rate of disease progression; an early age of onset; and the absence of systemic diseases.

What is buttressing bone formation?

Background: Buttressing bone formation has been described as the development of thickened or exostotic buccal alveolar bone in response to heavy occlusal forces.

What is Coronoplasty?

Coronoplasty is the procedure that selectively reduces the supracontacts, thus relieving patient of the same. It is used to provide better stability and occlusion in a permanent dentition noninvasively.

What is crater in periodontics?

with periodontitis are likely to be interproximal and. are morphologically described as interdental craters. Such osseous craters are a reflection of the col-like. topography of the normal interproximal gingiva and. the more modified flat or concave shape of the bony.

What are the Ramfjord teeth?

In addition, Ramfjord recommended the assessment of six ‘index teeth’ that soon became known as the ‘Ramfjord teeth’ These teeth (with the notation of the FĂ©dĂ©ration Dentaire Internationale) were: maxillary right first molar (tooth 16), maxillary left central incisor (tooth 11), maxillary left first bicuspid (tooth 24) …

What is alveolar exostosis?

Alveolar bone exostoses (ABE) were defined as benign localised convex outgrowths of buccal (or lingual) bone, which could be delineated from the surrounding cortical plate. These are commonly found as a nodular growth of lamellar bone with a central core of cancellous bone in larger lesion.

What is trauma from occlusion?

INTRODUCTION. Occlusal trauma has been defined as injury to the periodontium resulting from occlusal forces that exceeds the reparative capacity of the attachment apparatus. Trauma from occlusion refers to tissue injury due to distorted occlusion. An occlusion that produces such injury is called a traumatic occlusion.

What is CPITN index?

Abstract. Background: Community periodontal index of treatment needs (CPITN) index is commonly used to measure periodontal disease. It’s uniqueness, apart from assessing the periodontal status, also gives the treatment needs for the underlying condition.

What is the gingival index?

The Gingival Index (GI) scores each site on a 0 to 3 scale, with 0 being normal and 3 being severe inflammation characterized by edema, redness, swelling, and spontaneous bleeding4 (Table 2-2). This measurement is based on the presence or absence of bleeding on gentle probing.