What is often used along with bonding material when a tooth is severely broken down?

Pin retention is commonly used alongside bonding materials when a tooth is severely broken down because it provides added stability and support for the restoration. Pins are small metal or plastic devices that are inserted into the tooth structure to create a mechanical anchor for the bonding material. This technique is particularly beneficial when the remaining tooth structure is insufficient to retain a filling or other restorative material adequately. The pin effectively reinforces the area, ensuring that the bonded restoration has a more secure foundation, thus enhancing the longevity and success of the repair.

Other options, such as composite fills and glass ionomer, are restorative materials but do not provide the same level of mechanical retention as pin retention. While dental crowns can offer significant coverage and protection for a severely damaged tooth, they are usually considered a separate restorative option when the tooth structure is compromised to the point that a filling alone is insufficient. Hence, pin retention serves a distinct role by enhancing the retention of bonding materials in cases of significant tooth breakdown.