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- 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. This is true only in permanent teeth. In deciduous (baby) teeth, the maxillary second molar is the last tooth in the mouth and does not have a third molar behind it. The function of this molar is similar to that of all molars in regard to grinding being the principal action during mastication, commonly known as chewing. There are usually four cusps on maxillary molars, two on the buccal (side nearest the cheek) and two palatal (side nearest the palate). There are great differences between the deciduous (baby) maxillary molars and those of the permanent maxillary molars, even though their function are similar. The permanent maxillary molars are not considered to have any teeth that precede it. Despite being named molars, the deciduous molars are followed by permanent premolars. The deciduous maxillary second molar is the most likely deciduous tooth to have an oblique ridge. In the universal system of notation, the deciduous maxillary second molars are designated by a letter written in uppercase. The right deciduous maxillary second molar is known as "A", and the left one is known as "J". The international notation has a different system of notation. Thus, the right deciduous maxillary second molar is known as "55", and the left one is known as "65". In the universal system of notation, the permanent maxillary second molars are designated by a number. The right permanent maxillary second molar is known as "2", and the left one is known as "15". In the Palmer notation, a number is used in conjunction with a symbol designating in which quadrant the tooth is found. For this tooth, the left and right second molars would have the same number, "7", but the right one would have the symbol, "┘", underneath it, while the left one would have, "└". The international notation has a different numbering system than the previous two, and the right permanent maxillary second molar is known as "17", and the left one is known as "27". (en)
- 上顎第二大臼歯（じょうがくだいにだいきゅうし、maxillary second molar）は上顎歯列で第一大臼歯の遠心側に隣接する歯の事。正中から七番目にあることから上顎7番とも言う。近心側隣接歯は上顎第一大臼歯、遠心側隣接歯は上顎第三大臼歯、対合歯は下顎第二大臼歯と下顎第三大臼歯である。しかしながら、第三大臼歯は萌出しない人も多く、この場合第二大臼歯が一番遠心側にある歯となる。歯冠が完成するのは七歳～八歳時、萌出は十二～十三歳、歯根完成は十四～十六歳の時である。 (ja)
- De tweede molaar is een tand in de achterste delen van de mond, achter de eerste molaar en vóór de eventuele verstandskies (zie afbeelding). In een normale gebitsituatie is het de 7de tand vanaf het midden van de mond (centrale snijtanden). In een normaal volwassen gebit bevinden zich in totaal 4 tweede molaren, één in elk kwadrant. Voor de tweede molaren bevinden zich dus de eerste molaren. Beide soorten kiezen hebben grofweg dezelfde kenmerken en functie. Over deze onderwerpen is daarom meer te lezen in het artikel molaar. (nl)
- Il secondo molare è un elemento caratterizzato da una variabilità morfologica che porta a distinguere:
* la tipologia a 4 cuspidi, trapezoidale e decisamente simile al primo molare;
* il tipo a 3 cuspidi, con la cuspide disto-linguale attenuata o scomparsa, più simile al terzo molare. Presenta costantemente un ponte di smalto che costituisce la cresta obliqua, che congiunge la cuspide mesio-palatale con la disto-vestibolare. Ha un'altezza di 19 mm, di cui 7 coronali e 12 radicolari. Il diametro mesio-distale coronale è di 9 mm, mentre al colletto si restringe a 7 mm; il vestibolo-linguale misura mediamente 10 mm. La corona è dunque più piccola in tutte le sue misurazioni rispetto al primo molare. (it)
- O Segundo molar superior é um dente inserido osso maxilar. (pt)
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- Maxillary second molars of permanent and primary teeth marked in red. (en)
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- Maxillary second molar (en)
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- 上顎第二大臼歯（じょうがくだいにだいきゅうし、maxillary second molar）は上顎歯列で第一大臼歯の遠心側に隣接する歯の事。正中から七番目にあることから上顎7番とも言う。近心側隣接歯は上顎第一大臼歯、遠心側隣接歯は上顎第三大臼歯、対合歯は下顎第二大臼歯と下顎第三大臼歯である。しかしながら、第三大臼歯は萌出しない人も多く、この場合第二大臼歯が一番遠心側にある歯となる。歯冠が完成するのは七歳～八歳時、萌出は十二～十三歳、歯根完成は十四～十六歳の時である。 (ja)
- De tweede molaar is een tand in de achterste delen van de mond, achter de eerste molaar en vóór de eventuele verstandskies (zie afbeelding). In een normale gebitsituatie is het de 7de tand vanaf het midden van de mond (centrale snijtanden). In een normaal volwassen gebit bevinden zich in totaal 4 tweede molaren, één in elk kwadrant. Voor de tweede molaren bevinden zich dus de eerste molaren. Beide soorten kiezen hebben grofweg dezelfde kenmerken en functie. Over deze onderwerpen is daarom meer te lezen in het artikel molaar. (nl)
- O Segundo molar superior é um dente inserido osso maxilar. (pt)
- 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. This is true only in permanent teeth. In deciduous (baby) teeth, the maxillary second molar is the last tooth in the mouth and does not have a third molar behind it. The function of this molar is similar to that of all molars in regard to grinding being the principal action during mastication, commonly known as chewing. There are usually four cusps on maxillary molars, two on the buccal (side nearest the cheek) and two palatal (side nearest the palate). (en)
- Il secondo molare è un elemento caratterizzato da una variabilità morfologica che porta a distinguere:
* la tipologia a 4 cuspidi, trapezoidale e decisamente simile al primo molare;
* il tipo a 3 cuspidi, con la cuspide disto-linguale attenuata o scomparsa, più simile al terzo molare. Presenta costantemente un ponte di smalto che costituisce la cresta obliqua, che congiunge la cuspide mesio-palatale con la disto-vestibolare. (it)
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- Secondo molare superiore (it)
- Maxillary second molar (en)
- 上顎第二大臼歯 (ja)
- Tweede molaar (nl)
- Segundo molar superior (pt)
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- Maxillary second molar (en)
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