Key learning points: Orthograde retreatment is a treatment option to manage refractory lesions in teeth that have previously received endodontic treatment, retreatment and apicectomy. Orthograde retreatment using long-term intracanal calcium hydroxide can help promote root-end closure of a resected apex.

What is Orthograde treatment?

Key learning points: Orthograde retreatment is a treatment option to manage refractory lesions in teeth that have previously received endodontic treatment, retreatment and apicectomy. Orthograde retreatment using long-term intracanal calcium hydroxide can help promote root-end closure of a resected apex.

What is Orthograde and retrograde?

Orthograde is the use of this material through the coronal access point vs. retrograde which is the use of the material from the apex of the tooth as in the example of apicoectomy.

What is Orthograde root canal treatment?

A root end surgery, also known as apicoectomy (apico- + -ectomy), retrograde root canal treatment (c.f. orthograde root canal treatment) or root-end filling, is an endodontic surgical procedure whereby a tooth’s root tip is removed and a root end cavity is prepared and filled with a biocompatible material.

What does Periradicular mean?

periradicular (not comparable) Surrounding a root or radicle quotations ▼

Why do we Apexify?

Apexification is indicated for immature permanent teeth that are non-vital with incompletely formed roots. The objective of this procedure is to induce root end closure (apexification) at the apices of immature roots through the formation of mineralized tissue.

What is reversible and irreversible pulpitis?

In reversible pulpitis, pain occurs when a stimulus (usually cold or sweet) is applied to the tooth. When the stimulus is removed, the pain ceases within 1 to 2 seconds. In irreversible pulpitis, pain occurs spontaneously or lingers minutes after the stimulus (usually heat, less frequently cold) is removed.

What is the purpose of retrograde filling in apicoectomy?

The routine use of retrograde fillings during apical surgery, as well as the material of choice for that purpose, have been debated. A retrograde filling is placed so as to seal an infected root canal causing periapical pathosis.

What is Apisectomy?

An apicoectomy is a straightforward, minor surgical procedure that’s done on children and adults as a way to save at-risk teeth and prevent potentially serious complications. An apicoectomy is also known as root end surgery. This is because it involves the removal of a tooth’s root tip and surrounding tissue.

Why is apicoectomy done?

In most cases, root canals last a lifetime, but sometimes, the tooth doesn’t heal well and becomes reinfected. Your dentist will use an apicoectomy to remove damaged tissue to save the tooth and avoid pulling it out. You might also need a root end resection to: Remove calcium deposits in the root canal.

Is periradicular the same as periapical?

Etymologically, the name refers to inflammation (Latin, -itis) around (peri- ) the root tip or apex (-apical) of the tooth (-odont-). Periradicular periodontitis is an alternative term….

Periapical periodontitis
Other names Apical periodontitis, periradicular periodontitis

What is apical periodontitis?

Apical periodontitis is a chronic inflammatory disorder of periradicular tissues caused by aetiological agents of endodontic origin. Persistent apical periodontitis occurs when root canal treatment of apical periodontitis has not adequately eliminated intraradicular infection.

What is the difference between Apexogenesis and apexification?

Apexification is a method of inducing a calcified barrier at the apex of a nonvital tooth with incomplete root formation. Apexogenesis refers to a vital pulp therapy procedure performed to encourage physiological development and formation of the root end.

What is orthograde endodontic treatment for horses?

An orthograde endodontic method, similar to that used in human dentistry, is described for use on endodontically diseased permanent cheek teeth in horses. The technique has been adapted to meet the anatomical and physiological differences between hypsodont and brachyodont teeth and is performed in sedated horses.

What is orthograde in medical terms?

Medical Definition of orthograde 1 : walking with the body upright or vertical — compare pronograde 2 : anterograde sense 2

What are the alternatives to orthograde root canal therapy?

For teeth that cannot be treated with orthograde root canal therapy, or for which it has failed, retrograde root filling, which seals the root canal from the root apex, is a good alternative. Many materials, such as amalgam, zinc oxide eugenol and mineral trioxide aggregate (MTA), are generally used.

Why would a horse need an orthograde?

The cause of this was most commonly material failure, i.e. a leaking occlusal seal without further loss of dental hard tissue or new tooth fissures/fractures. One advantage of the orthograde technique is that it can be performed on a sedated standing horse.