By: Dr. Sumathi, Prosthodontist
Prosthodontics is the branch of dentistry that deals with the replacement of missing teeth and related mouth or jaw structures by bridges, dentures, or other artificial devices.
Earlier Prosthodontics was considered to be a branch of dentistry which replaces only missing tooth structures. With modern skill and technology the Prosthodontist replaces the missing structures of oral cavity, face, head and rest of the body with Prosthesis. It is different from plastic surgery where skin grafts or original body tissues are used to replace the loss.
Following are some of the selected cases done by me including preparation of prosthesis at Sri Ramachandra Dental College in Chennai during my Post Graduation period under supervision of Head of Department, Dr. T.V.Padmanabhan*.
MAGNET RETAINED REMOVABLE BRIDGE
Pre-operative picture shows drifted lower teeth with receding gums and no upper teeth. Teeth with poor prognosis were extracted. Root canal treatment and tooth preparation were done
Metal copings cemented on the prepared teeth
Magnets were fixed to the inner surface of the bridge with resin cement
Complete Post operative picture
IMPLANT SUPPORTED COMPLETE DENTURE
Implant supported prosthesis looks and functions like a natural tooth and replaces the missing tooth without sacrificing neighbouring teeth.
Implant supported Over Denture has many practical advantages than conventional Complete Denture. These include reduced bone resorption, increased function, phonetics, patient’s psychological outlook and quality of life.
Earlier 4-6 implants were used for Over Denture but recent studies have proved that single implant supported Over Denture provides satisfactory retention and stability. Single implant placement reduces the surgical procedure, pain and is also economical to the patient.
MAXILLO FACIAL PROSTHESIS
Maxillofacial prosthetics is a branch of Prosthodontics that deals with restoration of congenital or acquired defects, both intra oral and extra oral.
MAXILLARY OBTURATOR: An Obturator is a prosthesis used to close defects of the hard/soft palate that may affect speech production or cause nasal regurgitation during feeding.
The defect was created due to removal of a tumour in Hard Palate.
VELOPHARYNGEAL OBTURATOR: A patient reported with complaint of regurgitation and nasal speech after excision of pharyngeal tumour. Velopharnygeal obturator was planned to cover the defect.
A cast partial framework was done first and pick up impression made with rubber base impression material. Acrylic extension was done to cover the defect.
EYE PROSTHESIS
Impression was made with rubber base material. Stock eye shell was selected comparing with the other eye and wax pattern was fabricated.
Ocular Prosthesis was made with RTV Silicone and artificial hairs were attached to the prosthesis for eyelashes.
Picture shows ocular defect due to Enucleation (Removal of Eyeball) due to a Tumour.
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