GBR, guided bone regeneration; KCOT, keratocystic odontogenic tumor. ∗CollaPlug was placed at the same time as apicoectomy specimen was submitted. Accidental contamination occurred.
GBR, guided bone regeneration; KCOT, keratocystic odontogenic tumor.∗CollaPlug was placed at the same time as apicoectomy specimen was submitted. Accidental contamination occurred.