The dentine and cementum are less dense than tooth enamel and therefore more susceptible to sensation from thermal / mechanical sources.
22.
Even in badly decayed skeletons, hard shells of dentine usually protect the pulp cavities of teeth, preserving the DNA inside.
23.
Fine longitudinal cracks, which appear as radial cracks in cross-section, originate in the cementum and penetrate the dentine.
24.
The teeth of " Proplatynotia " are smooth and lack plicidentine, folded layers of dentine around the center convergence.
25.
*Tooth repair mechanisms that promotes dentine reinforcement of a sponge structure until the sponge biodegrades, leaving a solid dentine structure.
26.
*Tooth repair mechanisms that promotes dentine reinforcement of a sponge structure until the sponge biodegrades, leaving a solid dentine structure.
27.
GICs have good adhesive relations with tooth substrates, uniquely chemically bonding to dentine and, to a lesser extend, to enamel.
28.
Radiographically, there should be a clear band of dentine between the carious lesion and pulp for a Hall Technique to be suitable.
29.
The dentist goes on repeating the process until the liquid is no longer cloudy _ indicating that all the decayed dentine has been dissolved.
30.
Cyclostomes apparently split from other agnathans before the evolution of dentine and bone, which are present in many fossil agnathans, including conodonts.