**8.3 Sub gingival fracture**

Teeth with sub gingival fracture line should be observed closely and maintained plaque free otherwise, gingivitis and periodontitis can develop and jeopardize the prognosis of the tooth.

#### **Figure 3.** *The use of unitufted brush between two central incisors below the dental splint.*

*Short and Long Term Oral Hygiene Maintenance Protocols for Traumatic Dental Injuries DOI: http://dx.doi.org/10.5772/intechopen.96043*
