关键区别 - 上颌与下颌Canine
Canines play an important role in dental解剖学和生理学. They are regarded as the strongest type of teeth used in ripping and tearing food. They assist theincisorsin the mastication process. There are 4 canines that are situated in the four corners of the mouth. Therefore, they are termed as ‘cornerstones of the dental arches.’ Canines can be categorized as maxillary canines and mandibular canines. Maxillary canines are of two types; the right and left. They are attached to the maxilla bone and is situated in the upper jaw. They erupt at the age of 10-12 years. Mandibular canines are two types; right and left. They are attached to the mandible which is the lower jaw. They erupt at the age of 9 – 10 years. Thekey difference上颌和下颌犬之间是牙齿的位置。上颌犬固定在上颌骨上,而下颌犬则连接到下颌。
内容
1.Overview and Key Difference
2.什么是上颌犬
3.What is a Mandibular Canine
4.Similarities Between Maxillary and Mandibular Canine
5。Side by Side Comparison – Maxillary vs Mandibular Canine in Tabular Form
6。概括
什么是上颌犬?
上颌犬的数量为两个,位于上颚附着。它们与下颌犬相比显示了后来的发展。永久性上颌犬在9-10岁时爆发。上颌犬的冠很大,并且根部最长,边缘增厚。
上颌犬的解剖结构可以在不同方面描述。唇部方面,舌头方面,内部方面,远端方面和切牙方面。
唇部方面
中端的一半类似于侧切牙的一部分,而远端类似于前磨牙的一部分。冠和根似乎更窄。牙齿的曲率有所不同。从近乎角度来说,它是凸的,而远端是在唇部方面凹入的。牙齿的牙冠显得光滑。
Lingual Aspect
In the lingual aspect of the maxillary canine, the crown and the root are narrower. The lingual surface is smooth.
Mesial Aspect
Mesial aspect of the maxillary canine takes a wedge shape. The canines appear as a straight line from the mesial aspect, and the surface shows a convex curvature.
远端
Similar to the mesial aspect, although the curvature line shows less curvature in comparison with the mesial aspect.
切牙方面
从切牙方面观察时,上颌犬显示对称性。
什么是下颌犬?
Mandibular canines are the canines in the lower jaw or are attached to the mandible. They erupt earlier, and the permanent mandibular canines appear in the age of 9-10 years. There are two main types of mandibular canines; the right mandibular canine and the left mandibular canine.
与上颌犬相似,下颌犬也可以根据不同方面进行表征。
唇部方面
下颌犬的舌表面是光滑的,冠的表面比上颌犬长。冠的轮廓直接与根直。下颌犬根很短,根曲率大多是很不常见的。
Lingual Aspect
The lingual surface of the canine is flat, and the cingulum is smooth. The lingual part of the mandibular canine root is narrowed.
Mesial Aspect
The mesial aspect of the mandibular canine is characterized by the less curvature of the crown. The root of the mandibular canine is similar to that of the maxillary canine.
远端
类似于上颌犬的类似,在介体方面和远端方面没有太大的区别。
切牙方面
Cusp tips and ridges are more inclined towards a lingual direction.
What are the Similarities Between Maxillary and Mandibular Canine
- 都有左、右类型。
- Both perform the same function of tearing food during the process of mastication.
- 两者都位于下颌的角落,因此被称为“基石”
- Both are placed next to the lateral incisors.
- Both are characterized by different viewing aspects – labial, lingual, mesial, distal and incisal.
- Both have similar mesial aspects.
上颌和下颌犬有什么区别?
Maxillary Canine vs Mandibular Canine |
|
上颌犬是附着在上颌骨上的犬,并附着在上颌上。 | Mandibular canines are canines attached to the mandible and are attached to the upper jaw. |
喷发年龄 | |
上颌犬的10 - 11年。 | 9-10 years in Mandibular canines. |
Crown | |
Large crown in maxillary canines. | Smaller crown in a mandibular canine in comparison with the maxillary canine. |
Root | |
Long root is present in maxillary canine. | Shorter root in comparison with the maxillary canine in mandibular canine. |
摘要 - 上颌与下颌Canine
牙齿解剖结构是一个有趣且广泛研究的区域,因为通过牙科解剖结构收集的信息在牙科手术和设计之类的牙齿设备中很重要。上颌和下颌犬分别位于上颌骨和下颌的两种类型。它们的结构和观点略有不同。共同通过撕裂食物形成食物推注,共同使所有四个犬都起作用,以帮助咀嚼过程。这可以描述为上颌和下颌犬之间的差异。
下载上颌与下颌犬的PDF版本
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Reference:
1.“永久性犬类:上颌和下颌(牙齿解剖学,生理和遮挡)第1部分。”WhathohOw rss,what-when-how.com/dental-anatomy-physiology-and-clusion/the-permanent-canines-canines-maxillary-and-maxillary-and-mandibular-dental-dental-anatome-physiology-physiology-and-clusion-parthip-part-1/。
2.“The Permanent Canines: Maxillary and Mandibular (Dental Anatomy, Physiology, and Occlusion) Part 2.” Whatwhenhow RSS, what-when-how.com/dental-anatomy-physiology-and-occlusion/the-permanent-canines-maxillary-and-mandibular-dental-anatomy-physiology-and-occlusion-part-2/.
3.“The Permanent Canines: Maxillary and Mandibular (Dental Anatomy, Physiology and Occlusion) Part 3.” Whatwhenhow RSS, what-when-how.com/dental-anatomy-physiology-and-occlusion/the-permanent-canines-maxillary-and-mandibular-dental-anatomy-physiology-and-occlusion-part-3/.
Image Courtesy:
1.’Maxillary canine’By Ανώνυμος Βικιπαιδιστής – Own work,(CC BY 3.0)viaCommons Wikimedia
2.’Mandibular Canines01-01-06'(CC BY-SA 3.0)viaCommons Wikimedia
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