In Titles: Do Not Capitalize. As you have probably noticed short words, those with less than five letters, are generally lowercase in titles, unless they are the first or last words in a title. Generally, we do not capitalize: 1  Articles: a, an, the.  Coordinating Conjunctions: and, but, or, for, nor, etc.
Taurodontism is caused by the failure of Hertwigâs. epithelial sheath diaphragm to invaginate at the proper. horizontal level (Hamner et al. 1964, Terezhalmy et al. 2001). Interference in the epitheliomesenchymatose. induction has also been proposed as a possible aetiology. (Llamas & Jimenez-Planas 1993).
Mutations in the TCOF1, POLR1C, or POLR1D gene can cause Treacher Collins syndrome. TCOF1 gene mutations are the most common cause of the disorder, accounting for 81 to 93 percent of all cases. POLR1C and POLR1D gene mutations cause an additional 2 percent of cases.