Prime-Dental i-post is used in one of the important stages in endodontic therapy i.e. is to restore the tooth with a stable restoration for mastication and aesthetic purpose. Post & core helps to restore the tooth to normal anatomy. Every tooth which is endodontically treated need not be treated with a post. The main function of the post is to give retention to the core. It does not strengthen the tooth. Whenever a clinician feels that coronal filling is not having sufficient retention, one can opt for the post. There is no clear-cut clinical guideline to decide the indication for the post. But many times more than approx 30% to 40% destruction needs a post.

For the convenience, follow these guidelines while using i-Post :-

• Achieve coronal seal: – as early as possible. (within 1 to 3 months).
• Ferrule effect is mandatory – for resistance and retention form.
• Crown margins should end 1 to 2 mm below the core material or on a sound tooth/root structure.
• Passive, parallel design is the best.
• Threaded–tapered design is disastrous.
• Cast posts are the best but the procedure is technique sensitive & dependent on impression procedure and laboratory.
• Post which compensates the anatomical coronal flare is recommended.
• Amalgam could be the best alternative to improved composite resins in subgingival destruction.
• Cementation of the post – post design / length is the key to success.
• Luting cement can be zinc phosphate / flowable composite resins or dual cure cement.
• Clinical success of the post depends on length, size, design & ferrule effect.

Indications Of i-Post :

• Clinicians desire:- whenever coronal filling needs additional retention, one may decide to place a post.
• One may decide according to the tooth structure available after removal of the entire carious lesion
• One may decide after anticipating the amount of tooth structure that would be available after crown preparation.
• Abutments of f.P.D. & r.P.D.S,
• Mandibular Incisors
• Teeth having cervical cavities
• If the destruction of the tooth is more than 30% To 40%