Difference Between Maxillary and Mandibular Molars

From the occlusal view, maxillary molars have a more square or twisted parallelogram shape. Mandibular molars have a some- what rectangular shape, and on mandibular first molars, the outline may be pentagon shape (compare the outline shapes on Appendix 8k). Mandibular molar crowns normally have four or five cusps.

1. What is a mandibular molar?
2. How do you tell the difference between premolars?
3. How many maxillary molars are there?
4. Do I need to replace first molar?
5. When do you lose your first molar?
6. Do all maxillary molars have 3 roots?
7. Which molar is the most symmetrical?
8. How many roots does a molar have?
9. Where in the mouth is the premolar?
10. What is the purpose of molars?
11. Are premolars hard to extract?

What is a mandibular molar?

Anatomical terminology. The mandibular first molar or six-year molar is the tooth located distally (away from the midline of the face) from both the mandibular second premolars of the mouth but mesial (toward the midline of the face) from both mandibular second molars.

How do you tell the difference between premolars?

The main distinctions between premolar and molar teeth are in their size and shape. While a molar has four cusps or points, a premolar has only two. Molars are also significantly larger than their bicuspid neighbors.

How many maxillary molars are there?

There are usually four cusps on maxillary molars, two on the buccal (side nearest the cheek) and two palatal (side nearest the palate). There may also be a fifth smaller cusp on the palatal side known as the Cusp of Carabelli.

Do I need to replace first molar?

The replacement of first molars should be seen as a high priority to maintain full function, with both bite and jaw stability. The second molars, on the other hand, are not nearly as important to good function, and in many cases are not replaced unless a patient feels the chewing surface is missed.

When do you lose your first molar?

In this Article

Do all maxillary molars have 3 roots?

Most previous studies on maxillary molars have reported that these teeth usually have three roots and four canals since an extra canal is often found in the mesiobuccal root. Other anatomical variations in the form of an extra C-shaped canal have also been reported in distobuccal and palatal roots.

Which molar is the most symmetrical?

In the present study, first molars, both maxillary and mandibular, exhibited greater asymmetry than the second molars. Maxillary first molars were found to be symmetrical in 71.1% of patients, whereas maxillary second molars were symmetrical in 79.6%.

How many roots does a molar have?

How many roots does each tooth have? The number of roots for each type of tooth varies. Typically incisors, canines and premolars will have one root whereas molars will have two or three.

Where in the mouth is the premolar?

Premolars, also known as bicuspids, are the permanent teeth located between the molars in the back of your mouth and your canine teeth, or cuspids, located in the front.

What is the purpose of molars?

Molars, in the back of the mouth, are used for grinding our food. The typical adult has twelve molars, 4 of which are your wisdom teeth. Each side of the upper and lower jaw has three molars. These are our largest teeth and designed to sustain the force used for chewing, grinding and clenching.

Are premolars hard to extract?

It is generally harder to remove a tooth with multiple roots such as molars, especially if they have curved, crooked or hook-like roots. ... The roots of molars and premolars are sometimes small and fragile and can break easily.