For endodontic treatment, all teeth were sectioned 2-mm coronal to the cemento-enamel junction
(for 2mm ferrule) and were prepared with a bur to produce a 1.
The main objective of any therapeutic intervention aimed at root coverage is to restore the tissue margin to the cemento-enamel junction
and to gain an attachment of the tissue to the root surface such that the gingival sulcus showing no bleeding on probing and a minimal probing depth.
Like dentigerous cysts, they are associated with impacted teeth; however, these tumors usually extend beyond the cemento-enamel junction
and include the tooth root with variable calcification around the embedded tooth (Figure (7).
Copenhagen, Denmark) was used to cut the molar into two pieces from the cemento-enamel junction
with low speed; the dental pulp was extracted from the cross section of the tooth root.
Dentigerous cyst (DC) is the most common developmental cyst present in the oral cavity, accounting approximately for 20% of the developmental cysts of the jaws, and is almost always related with the crown of a tooth attached to the cemento-enamel junction
Intra-oral examination showed Ellis class III fracture of 21 (left upper central incisor) at the level of cemento-enamel junction
Tooth number 17 (Figure 5) was extracted with associated soft tissue due to extension of the lesion to the cemento-enamel junction
The dental professional should carefully burnish ColgateA Sensitive Pro-Relief TM desensitizing paste into all sensitive areas, focusing on the cemento-enamel junction
and exposed dentin.
In experimental groups (C, Z and T) the anatomic crowns of the teeth were sectioned perpendicular to the long axis, 2mm above the cemento-enamel junction
, under continuous water cooling, and then the root canals were prepared for the posts placement.
Clinical loss of attachment measurement were made from the cemento-enamel junction
to bottom of the sulcus.
After remnant soft tissue was removed, all teeth were sectioned (Minitom, Struers, Copenhagen, Denmark) perpendicular to the cemento-enamel junction
and the roots were discarded.
Occurrence of root caries was assessed and root length, distance between cemento-enamel junction
and root tip, was measured (mm).