pH순환 처리 전 표면 경도를 측정하였던 4부위와 인접한 곳에서 VHN 측정부의 인접 부위에서 재차 VHN을 측정하여 전후의 VHN 차이를 실험 용액의 재광화 효과로 산정하였다.
VHN was measured again at the VHN calculating unit at the 4 sites where in fact the area hardness was calculated before the pH period treatment and at the site adjacent to it, and the VHN huge difference before and after was determined since the remineralization impact of the test solution.