How many canals are in a upper second molar?
A maxillary second molar usually has three roots and three canals. The maxillary molar has been reported with various root canal anatomy having four roots [2], two roots [3, 4], and even a single root with a single canal [5]. The prevalence of a single canal in the maxillary molar is reported to be 0.5-0.6% [2, 5].
Where is the 2nd upper molar?
The maxillary second molar is the tooth located distally (away from the midline of the face) from both the maxillary first molars of the mouth but mesial (toward the midline of the face) from both maxillary third molars.
What are the differences between maxillary first and second molar?
Most maxillary second molars have four cusps: two buccal and two lingual cusps. The mesiolingual cusp is normally considerably wider than the distolingual cusp, compared to maxillary first molars where the size of the lingual cusps is closer to the same size.
Can upper second molar have only 2 canals?
Although variations in the maxillary second molar may occur, it generally has three roots and three canals, while a second mesiobuccal canal (MB2) is found in 56.9–79.6% of cases. However, rare variations other than one or two roots can also be found in the maxillary second molar.
What is the hardest tooth to do a root canal on?
Maxillary first molars (MFM) are among the most difficult teeth for endodontic treatment due to their complex root canal system [2].
How many roots does a second molar have?
Normally mandibular first and second molars have two roots, one is mesial and the other is distal, and at least three main canals. The roots of the second molar can change from one to three, the first molar can have also four roots; the canals can change from three to even six.
How many cusps does the maxillary second molar have?
four cusps
Deciduous Second Maxillary Molar The maxillary second molar consists of four cusps: the largest is the mesiopalatal followed by the mesiobuccal, and the distopalatal cusp is the smallest.
How many roots does a 2nd molar have?
Why does my second molar hurt?
Your molars might be in pain due to tooth decay, an abscess, or just way too much spicy food. There are treatment options available to get rid of your pain and restore your molars to good health.
Does an upper 2nd molar need to be replaced?
It can make a difference whether you are missing an upper second molar or a lower one. If it is a lower molar, the answer is almost always “yes – you need to replace it.” These set of back molars are your primary chewing teeth, and they are directly in line with the main chewing muscle called the masseter.
Can you live without second molar?
It’s common for adults to lose a back molar, often to gum disease, tooth decay, or injury. Since back molars don’t affect the overall appearance of your smile, you might be tempted to skip replacing it. That’s not the best idea. Missing a tooth, even just one, can cause severe and permanent damage to your entire mouth.
Can a second molar have 4 roots?
The existence of maxillary second molars with 4 roots (2 buccal and 2 palatal) is extremely rare and ranges about only 0.4%. This information comes from a study that showed, after the examination of two different horizontally angled radiographs of 1,000 maxillary second molars, just four with four roots2.
How many roots do second molars have?
two roots
Normally mandibular first and second molars have two roots, one is mesial and the other is distal, and at least three main canals. The roots of the second molar can change from one to three, the first molar can have also four roots; the canals can change from three to even six.
Which is the largest root on a maxillary molar?
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.
Does maxillary 2nd molar have oblique ridge?
Deciduous Second Maxillary Molar The maxillary second molar is rhombic in shape with its two acute angles occurring in the mesiobuccal and distopalatal corners and its obtuse angles occurring in the remaining corners. An oblique ridge runs from mesiopalatal to the distobuccal cusp.