Do molars have 3 canals?
The two-rooted mandibular first permanent molars usually have three canals. Two root canals are located in mesial root and another one in distal root. Hess reported that the prevalence of three root canals in mandibular molars was 78% (1).
How thick is the dentin in the furcation?
They reported that the average dentin thickness 2–3 mm apical to the furcation area adjacent to the MB2 root canal was significantly lower on the mesial and distal sides compared to the MB1 root canal.
What is the thickness of dentin?
The mean values of dentin thickness observed for first molars were 2430 mm (buccal), 1.869 mm (lingual), 1.655 mm (mesial) and 1.664 mm (distal). For second molars the dentin thickness presented 3.006 mm (buccal), 2730 mm (lingual), 2130 mm (mesial) and 2192 mm (distal).
What is premolar tooth?
Bicuspids are also called premolar teeth because they are located between our canines and our molars in the backs of our mouths. Bicuspid is the more common name. Bicuspid or premolar teeth typically come in between ages 12 and 13. They are part of your adult teeth.
What is the longest root in maxillary molars?
lingual root
Maxillary molars have three relatively long roots: mesiobuccal, distobuccal, and lingual (palatal). The lingual root is usually the longest; the distobuccal root is the shortest.
What is the difference between infected and affected dentin?
Infected dentin is soft due to the lack of mineral content or collagen network. Its consistency can be likened to cottage cheese. Affected dentin is firmer than infected dentin due to the presence of the collagen network and some mineral content. Its consistency may be referred to as leatherlike.
How do I protect my pulp?
Cavity Liners and bases are used for pulp protection. Liners are volatile or aqueous suspensions or dispersion of zinc oxide or calcium hydroxide that can be applied to the cavity surface in a relatively thin film. The Liners also have anti-cariogenic property which helps in formation of secondary or reparative dentin.
What is dental pulp?
Dental pulp is the center part of a tooth comprised of connective tissue, blood vessels, and cells. If this gets infected it may become painful and need root canal therapy to salvage the tooth. It is very important to have healthy pulp — please enjoy some fun dental pulp trivia!
What is a bicuspid teeth?
Bicuspids are also called premolar teeth because they are located between our canines and our molars in the backs of our mouths. Bicuspid is the more common name. Bicuspid or premolar teeth typically come in between ages 12 and 13.
What are pre molars?
Just as their name indicates, premolars are located just before the molars in the human mouth. These teeth are also known as bicuspids. The premolars are considered transitional teeth, as they work to guide food from the cuspids near the front of the mouth back to the molars near the rear of the mouth for chewing.
How are maxillary molars different?
The molars have two buccal grooves on the first molar and a single buccal groove on the second and third molar. They have two roots and no oblique ridge….Difference between Maxillary and Mandibular molars.
| Maxillary Molars | Mandibular Molars |
|---|---|
| Crown is more centered over the root | Crown is tipped more lingual over the root |
| Oblique ridge is present | Oblique ridge is absent |
How do you remove a deep Carie from your teeth?
A recent survey reported the majority of general dentists use a metal bur (69%) or hand excavator (66%) to remove deep caries, but some use ceramic (4%) and polymer (1%) burs. Polymer (or plastic) burs have a hardness that is lower than sound dentin, but harder than carious dentin.