Indication: Minimally invasive technique for treatment Calcified root canal of the tooth with a periapical infection.
Requisite for Microguide fabrication
- Suitable indication
- Intraoral scan or model scan
- Cbct of the area of interest with teeth apart [Teeth in occlusion create cbct segmentation issue}
Procedure (put this into graphical format as in case of precision aligners workflor
- Data acquisition which included CBCT, Intraoral/Model scan
- Cad planning to determine 3d virtual drill axis planning
Armamentarium required
- 28 mm or longer round of straight fissure bur 1.5 mm thick
- 3d printed microguide
Steps in Fabrication
Define 3D drill axis on CAD software using DICOM data. The access to cavity and drill axis planning is done on the calcified tooth/teeth. Guide hole should be slightly larger than the diameter of the drill
The virtual planning is converted into physical treatment tool using 3D (Form 2 – Formlabs) printer and suitable Biocompatible printing material.
