@article{bimstein e2007surface,
  title={Root Surface Characteristics of Children Teeth with Periodontal Diseases},
  author={bimstein e,wignall w,cohen d,katz j},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={32},
  number={2},
  pages={101--104},
  doi = {10.17796/jcpd.32.2.b6423rj156864l18},
  year={2007}
}