PROSTHODONTICS - Vijay Dental Miyapur

Sirona Cadcam Milling Machine

Vijay Multi Speciality Dental Hospital is the first hospital to have CAD CAM Milling machine (Sirona Inlab 4.0). With CAD CAM facility, crowns and bridges are made within 24 to 48 hours. CAD/CAM dentistry is a procedure of using computer-aided design and computer-aided manufacturing to enhance the design and creation of dental restorations, particularly dental implant restorations, dentures and orthodontic appliances.

CAD/CAM facility helps to increase the speed of creation and design, enhances the convenience or simplicity of the design, insert or create processes and makes possible restorations.CAD/CAM is considered as one of the sophisticated dental lab technology.

All ceramic veneers and laminates are made up of reinforced glass ceramics or lithium disilicates. CAD CAM milling machines can help generate the most convenient, tooth colored, biocomapatable non metallic and other affordable Prosthodontics solution to patients. CAD/CAM dentistry makes use of subtractive processes and other procedures to produce physical instances from 3D models.

CAD/CAM dentistry process

After damaged or decayed areas of the tooth are corrected by the dentist, a scan will be taken for the prepared tooth and surrounding teeth. This image is termed as a digital impression and draws the data into the system. Then proprietary software creates a replacement part for the missing areas of the tooth, creating a virtual restoration.

This process is called reverse engineering. The software then transmits the virtual data to a milling machine where the replacement part is shaped to a solid block or ceramic resin. The restoration is adjusted in the patient’s mouth and cemented in place.

With CAD/CAM milling machine, patients can experience the world-class treatments for their dental problems.

Dental Bridges

Dental bridges are used to fill in the gap between one or more missing teeth. A bridge is formed by two or more crowns for the teeth. These teeth are known as abutment teeth and false teeth are known as pontics, which can be made of gold, porcelain, alloys or a combination of these materials. Dental bridges are supported by natural teeth or implants.

Dental bridges can restore your smile and revives the ability to chew and speak. Most people opt for dental bridges because it maintains the shape of your face and prevents teeth from drifting out of position.

Types of Brides

Traditional Bridges

The process involves creating a crown for the tooth on either side of the missing tooth, with a pontic in between. These are the most common type of bridges and are made of porcelain fused to metal or ceramics.

Cantilever Bridges

When there are adjacent teeth on one side of the missing teeth, then Cantilever bridges are used. It is not recommended in the back of the mouth where it can put pressure on other teeth and damage them.

Maryland Bonded Bridges

Also known as a resin-bonded bridge or a Maryland bridge, these are made of porcelain fused to metal or plastic teeth and gums supported by a metal. Porcelain or metal wings on each side of the bridge are strongly bonded to existing teeth.

Dental Bridge Procedure

Firstly, the abutment teeth are prepared, which involves recontouring these teeth by removing a portion of enamel to create space for a crown to be placed over it. Then, impressions of the teeth will be made to develop a model from which the bridge, crowns and pontic will be made by a dental lab. Dentists will make a temporary bridge to protect exposed teeth and gums while the bridge is being made. Then, temporary bridge will be removed and the new porcelain or metal bridge will be adjusted to achieve a proper fit.

Dentures

Dentures can replace missing teeth and surrounding tissues. There are two types of dentures-complete and partial denture. Complete dentures are used when all teeth are missing, whereas, partial dentures are used when some natural teeth remain.

Complete Dentures

These can be either conventional or immediate. Conventional dentures can be replaced in the mouth after the teeth have been removed. Unlike conventional dentures, immediate dentures are made in advance and can be replaced as soon as the teeth are removed.

The wearer does not have to be without teeth during the healing period. The bones and gums shrink with time, particularly during the healing period following tooth removal. Hence, immediate dentures require more adjustments to fit properly. These are considered as a temporary solution.

Partial Dentures

Partial denture or bridge consists of replacement teeth attached to a pink or gum-colored plastic base, which is connected to metal framework holding the denture in the mouth. Partial dentures are preferred when one or more natural teeth remain in the upper or lower jaw.

A fixed bridge replaces teeth by placing crowns on the teeth. The bridge is then cemented into place. Partial denture not only fills in the spaces created by missing teeth but also prevents other teeth from changing position. A precision partial denture is removable and considered as a natural-looking appliance.

Care

You need to brush your dentures daily to remove food particles and plaque. Brushing can also help prevent teeth from staining. Rinse your dentures prior to brushing to remove any food or debris.
Try to use a soft bristle toothbrush and a non-abrasive cleanser to brush all the surfaces of the dentures so they don’t get scratched. Clean your mouth properly-including gums, cheeks, tongue and roof of your mouth to remove any plaque. This can reduce the risk of oral irritation and bad breath.

Crowns

Dental crowns are tooth-shaped cap that is placed over a tooth to restore its shape, size, strength and improve its appearance. The crowns when cemented will encase the complete visible portion of a tooth that lies above the gum line.

Who Should Opt For Dental Crown?

Dental crowns are opted in the following situations:

When the teeth is broken or decayed or hold other parts of a cracked tooth
Restoring broken tooth that has been severely worn down
Cover and support a tooth with a large filling
Hold a dental bridge in place
Cover misshaped or discolored teeth
Cover dental implant
Cosmetic modification

For children, a crown may be used on primary teeth to:

Save a tooth that has been damaged or decayed
Protect the teeth at greater risk of tooth decay
Reduce the frequency of general anesthesia for children

Crowns Are Made Of Various Materials, Of Which Some Of Them Are Listed Below:

Porcelain Bonded To Precious Metal

Most crowns are made of this material. A precious metal base is made and porcelain is applied in layers over it.

Porcelain

The crowns are made up of porcelain and are not as strong as bonded crowns. They look very natural ad most often used for front teeth

All-ceremic

This type of crown is suitable for all areas of the mouth. It is a metal-free alternative, which can add strength as of a bonded crown.

Glass

These crowns are very natural and can be used anywhere in the mouth

Gold-alloy crowns

It is one of the oldest filling materials. It is used with other metal alloys to increase the strength, making it very hardwearing. These crowns are silver, gold in color.

Generally, you will need to have 2 visits. During the first visit, your dental team will prepare the tooth, take impression and fit the temporary crown. During the second visit, your dentist will fit the permanent crown.

Interested to know more about dental crowns? Get in touch with us right away to know the complete info.

Obturators

A palatal obturator is a prosthesis that obstructs an opening such as an oronasal fistula. Palatal obturators are short-term prosthetics used to close defects of the hard or soft palate that may cause some problems to speech production or cause nasal regurgitation during feeding.

Palatal obturators are used to compensate for hypernasality and helps in speech therapy focusing on correcting compensatory articulation resulted due to the cleft palate. Simply put, a palatal obturator covers fistulas in the roof of the mouth that may develop nasal cavity, providing wearer a plastic removable roof of the mouth that aids in speech, eating and proper air flow.

Obturator Functions

The following are a few functions of Obturator:

Obturator can be used to keep the wound clean and it can enhance the healing of traumatic or post surgical defects
It can also help to reshape or reconstruct the defect
In some scenarios, it makes speech possible
It can also be used to correct lip and cheek position
In the case of deglutition and mastication impairs, it can be used to improve functions
It decreases the flow of exudates in the mouth

Objectives Of Obturator

It should be comfortable
Should be able to restore speech, deglutition and mastication
Should be acceptable cosmetically
In order to achieve all these objectives, the Obturator should have enough support, retention and stability

Objectives Of Obturator

Obturators are classified into three types such as surgical obturator, Interim obturator and definitive obturator. Placement of surgical obturator involves surgical process and this obturator is designed to replace the missing structural components including the plates and associative dentoalveolar structures of the maxillary arch.

The Interim Obturator acts as an alternative to the Surgical Obturator after the completion of initial healing period in the postoperative period. During this phase, multiple adjustments are made on the prosthesis. Teeth are frequently added to enhance the functionality of the mouth and support the nutritional intake.

Definitive obturator involves the replacement of the functional teeth to maximize the oral functioning capacity. The phase can develop the appearance and aesthetic structure.

Eye Prosthesis (Ocular Prothesis)

Ocular prosthesis, artificial eye or glass eye is a type of craniofacial prosthesis that replaces natural eye following an enucleation, evisceration, or orbital exenteration. The prosthesis fits over an orbital implant. Most often known as a glass eye, the ocular prosthesis takes the shape of a convex shell and is made of plastic acrylic.

Few of ocular prostheses are made of cryolite glass. An ocular prosthesis does not give vision. People with an ocular prosthesis are blind on the affected side and have monocular vision.

The prosthetic eye consists of oval, whitish outer shell finished to replace the white color of the eye. It consists of the round, central portion painted to look like the iris and pupil of the other eye.

Ocular prosthesis is recommended after an eye is removed due to damage or disease. Few reasons why an eye will be removed include injury, eye infection, glaucoma and eye tumors.

Surgery Types

The surgery is categorized into two types. Depending on the type of surgery, the type of prosthetic eye will vary:

Evisceration

In this method, the jelly-like inside of the eye is suctioned out. This is performed by making an incision in the front of the eye. However, the procedure preserves tissues in the outer eye, and eye socket.

Ocular Prothesis

In this method, the eye is cut away and removed from the eye socket. Depending on the type of eye condition and degree of eye damage, your doctor will decide on the type of method.

Who Should Go For Prosthetic Eye?

Prosthetic eye can enhance the appearance of the affected eye socket. Most people prefer wearing an eye patch or bandage. In people who lost the entire eye, an ocular implant and prosthesis prevent the tissues in the eye socket from growing to fill the empty space.