Home > Lifestyle > How to boast a beautiful smile > News News All sections in Lifestyle » Diet and nutrition » Fitness » Man » Sex » Parenting » Woman » Contraception » Environmental Health » Health and Your Money » Healthy Home » Healthy Workplace » Mental Health » Pet Health » Stop Smoking » Street Drugs » Sun » Teen » Travel Health » Ageing well » Natural Health » Health tech » All lifestyle sections Lasers may help regrow teeth Scientists have found a way to coax dental stem cells to form dentin, the tissue that makes up the largest part of a tooth. Follow us on Twitter » Like us on Facebook » Read Health24 blogs » Ask the Dental expert » load more articles advertisement From our sponsors Otrivin Menthol relieves sinus congestion Innovative hearing aids can now interact online Second Healthcare Innovation Summit set for Johannesburg Salomon introduces Speedcross 4 Live healthier Nutrition crisis! » Good nutrition on the job will give you the edge Nutrition labels on food encourage healthy choices Nutrition may be as big a challenge today as HIV/Aids was 15 years ago Many people in a large number of low and middle income countries now experience a 'double burden' of malnutrition. E-cigarettes less risky? » E-cigarettes not an acceptable alternative to most smokers UK health officials endorse e-cigarettes E-cigarettes less of a cancer risk than regular smokes A study indicates that smokers who switch to e-cigarettes reduce their exposure to cancer-causing chemicals.