[HIRANUMA-4] Utilizing angulated screw channel abutment to achieve provisional screw-retained restoration in immediate implant placement and provisionalization in the esthetic zone
[Abstract]
Achieving screw-retained restoration for the implant restoration is crucial for long-term success due to its advantages in retrievability and the avoidance of risks associated with residual cement. To obtain the screw-retained implant restoration in the anterior maxilla, the goal is to position the implant so that the screw access channel emerges palatally to the incisal edge. However, achieving correct screw-retained implant positioning and angulation can be challenging due to the natural inclination of the premaxilla. Most of the anterior teeth have roots that are in contact with the facial bone, posing challenges for immediate implant placement and provisionalization (IIPP) because the implant must achieve stability by engaging enough bone while accommodating the placement of an appropriate screw access channel. Recently, the introduction of angulated screw channel (ASC) abutments enables the possibility of restoring implants in a screw-retained manner, even when the implants are initially placed in a non-screw-retained restorative position, as long as the required angulation correction is within 25 degrees. This presentation will offer both insights into the frequency percentage of screw-retained single crown using ASC abutment following IIPP in the esthetic zone, as well as guidance on effectively utilizing ASC abutment to achieve screw-retained provisionals in such cases.
トピックス
●Angulated screw channel abutment
●Immediate implant placement
●Immediate provisionalization
Achieving screw-retained restoration for the implant restoration is crucial for long-term success due to its advantages in retrievability and the avoidance of risks associated with residual cement. To obtain the screw-retained implant restoration in the anterior maxilla, the goal is to position the implant so that the screw access channel emerges palatally to the incisal edge. However, achieving correct screw-retained implant positioning and angulation can be challenging due to the natural inclination of the premaxilla. Most of the anterior teeth have roots that are in contact with the facial bone, posing challenges for immediate implant placement and provisionalization (IIPP) because the implant must achieve stability by engaging enough bone while accommodating the placement of an appropriate screw access channel. Recently, the introduction of angulated screw channel (ASC) abutments enables the possibility of restoring implants in a screw-retained manner, even when the implants are initially placed in a non-screw-retained restorative position, as long as the required angulation correction is within 25 degrees. This presentation will offer both insights into the frequency percentage of screw-retained single crown using ASC abutment following IIPP in the esthetic zone, as well as guidance on effectively utilizing ASC abutment to achieve screw-retained provisionals in such cases.
トピックス
●Angulated screw channel abutment
●Immediate implant placement
●Immediate provisionalization