RETAINERS IN FPD
Channel: DENTISTRY ’N MORE
Date: 2021-03-05

Pontic is the artificial tooth in the fixed or removable partial dentures; that is, the suspended portion of the fixed partial denture (bridge) replacing the missing natural tooth or teeth. The pontic may be fabricated from cast metal or combination of metal and porcelain. Designing a pontic is not simple; an exact anatomic replica of the tooth in the space would be difficult to manage. The requirements of the pontic design include esthetics, biocompatibility, function, phonetics, patient comfort, and maintenance of healthy tissue on the edentulous ridge.Pontic design selection depends on the location of the edentulous area. Controversies exist for the gingival embrasure space and design. Some considered less plaque accumulation with space closure while other proposed open embrasure space for oral hygiene maintenance pontic.

Pontic resembles the tooth morphology and may be altered to meet extra demands in certain clinical scenarios such as in case of convex tissue surfaces and narrow occlusal table. Decreasing the buccolingual width lead to decrease in interferences in eccentric movements. Some authors considered normal size occlusal table, whereas other considered it to be of minimum importance. Pontic should be out of tissue contact when proceeding from facial to lingual.

Different shapes of pontic are selected according to the position of the edentulous space, amount of bone resorption, and operator's and patient's preferences.It is recommended that the prosthodontist or the dental practitioner should advise the dental laboratory about the shape of the desired pontic for the fixed prosthesis.There is a variety of pontic designs (such as ridge lap, ovate, and conical) for mandibular and maxillary arches

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