Non Rigid Connectors In Fpd Pdf
And non-rigid connector between the second premolar and first molar. The distal of the second premolar was prepared to accommodate a non-rigid connector (Fig 1). Writing Data To A Text File In Python on this page. Putty-wash impression (3 M ESPE) was made ( Fig 2)for the preparation of the working model. It was poured in high-strength die stone (Kalabhai Karson Pvt.Ltd.).
A frequent clinical situation, either in the maxillary or mandibular arch, is of a missing first premolar and first molar, resulting in fixed partial denture design in which the canine and the second molar act as terminal abutments and second premolar act as a pier abutment. It has been postulated that the tendency of terminal abutments to intrude during function results in a teetering movements, where the pier abutment act as a fulcrum. These movements will eventually result in debonding of the less retentive terminal retainer. In order to overcome this potential risk, utilization of non rigid connectors has been advised. This clinical case report describes incorporation of non rigid connector to rehabilitate pier abutment case. A frequent clinical situation, either in the maxillary or mandibular arch, is of a missing first premolar and first molar, resulting in fixed partial denture design in which the canine and the second molar act as terminal abutments and second premolar act as a pier abutment. It has been postulated that the tendency of terminal abutments to intrude during function results in a teetering movements, where the pier abutment act as a fulcrum.
These movements will eventually result in debonding of the less retentive terminal retainer. In order to overcome this potential risk, utilization of non rigid connectors has been advised. This clinical case report describes incorporation of non rigid connector to rehabilitate pier abutment case. Case Report A 39-year-old male patient was reported to the Department of Prosthodontics of MIDSR Dental College and Hospital Latur, India with a chief complaint of dislodged prosthesis, difficulty in mastication as well as aesthetic problem [].
Past medical history was in significant and past dental history revealed that patient had undergone extraction of the badly carious right maxillary first premolar and first molar two years back, followed by conventional five unit FPD with rigid connectors, this FPD dislodged several times in span of two years. On Intraoral examination revealed missing right maxillary first premolar and maxillary first molar with right maxillary canine and right maxillary second molar acting as terminal abutments and second premolar act as a pier abutment. Silver amalgam filling seen with maxillary right second premolar and maxillary second molar [].On radiographic evaluation the abutment teeth had adequate bone support to be used as abutment. Missing right maxillary first premolar and first molar After discussing all the treatment options and their pros and cons, it was decided to rehabilitate the case with five unit FPD using non-rigid connectors on the distal aspect of a pier abutment. Its risks and benefits were explained to patient and a written, informed consent was obtained. Clinical Procedure The following clinical step by step procedure was carried out for his oral rehabilitation, • Tooth preparation was modified for porcelain fused to metal prosthesis on right maxillary canine and maxillary second premolar with equigingival margins and shoulder finish line in order to enhance the aesthetics []. Final impression • An interocclusal record was made using bite registration material.
How To Reinstall Blackberry Messenger On Q10. • Provisional restorations were fabricated with a tooth colour auto polymerising acrylic resin and cemented with non eugenol temporary cement. • The impression was poured in type IV dental stone. Master cast was retrieved and die cutting was done.
• Master cast were mounted on an articulator using interocclusal record. • Wax pattern was fabricated for maxillary right canine, first premolar and second premolar and then recess for the female was cut accordingly to fit the prefabricated plastic dovetail on distal aspect of pier abutment []. Wax pattern with male and female pattern • Surveying was done to determine the position and parallelism of plastic dovetail; plastic dovetail female was placed within the correct contour of the pier abutment. Male pattern was removed from the female pattern, keeping the inside of female pattern free of wax. Any extension of the female pattern above the occlusal level of the abutment was left remaining.
After casting, excess height of the female part was cut down; metal try-in of the anterior segment with the female part was done to verify proper seating. • Male pattern was seated in the casted female portion, then wax pattern was fabricated of right maxillary first molar and second molar and the mandrel was cut off from the male pattern.