The maxillary first premolar is one of two teeth located in the upper jaw, laterally (away from the midline of the face) from both the maxillary canines of the mouth but mesial (toward the midline of the face) from both maxillary second premolars. The function of this premolar is similar to that of canines in regard to tearing being the principal action during mastication, commonly known as chewing. There are two cusps on maxillary first premolars, and the buccal (closest to the cheek) cusp is sharp enough to resemble the prehensile teeth found in carnivorous animals. There are no deciduous maxillary premolars. Around 10-11 years of age, the primary molars are shed and the permanent premolars erupt in their place. It takes about 3 years for the adult premolar and its root to fully calcify.
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| - Πρώτος προγόμφιος άνω γνάθου (el)
- Primo premolare superiore (it)
- Maxillary first premolar (en)
- 上顎第一小臼歯 (ja)
- Primeiro pré-molar superior (pt)
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| - Ο πρώτος προγόμφιος άνω γνάθου είναι οπίσθιο δόντι και ανήκει στην ομάδα των προγομφίων. Είναι το τέταρτο δόντι του εκατέρωθεν της , τοποθετημένο ανάμεσα στον κυνόδοντα προς την εγγύς όμορη επιφάνειά του και στον προς την άπω όμορη επιφάνειά του. Ο προγόμφιος βοηθά στην άλεση της τροφής. Ανατέλλει κατά το δέκατο έτος. Ο νεογιλός φραγμός δεν έχει προγόμφιους. (el)
- I premolari superiori hanno la caratteristica di essere simili tra loro, e disposti in serie discendente: il primo è dunque più grande del secondo, a differenza degli inferiori. I premolari superiori possiedono due cuspidi di misura pressoché equivalente, anche se la più grande è sempre la vestibolare. Il primo premolare superiore ha mediamente un'altezza di 22.5 mm, di cui 8.5 coronali e 14 radicolari e un diametro mesiodistale piuttosto stretto (7 mm), e uno vestibolo-palatale di 9 mm, come il secondo premolare superiore. (it)
- 上顎第一小臼歯（じょうがくだいいちしょうきゅうし、英語: maxillary first premolar）は上顎歯列で犬歯の遠心側に隣接する歯のこと。正中から四番目にあることから上顎4番とも言う。近心側隣接歯は上顎犬歯、遠心側隣接歯は上顎第二小臼歯、対合歯は下顎第一小臼歯と下顎第二小臼歯である。歯冠が完成するのは五～六歳時、萌出は十～十一歳、歯根完成は十二～十三歳の時である。 (ja)
- O Primeiro pré-molar superior é um dente inserido osso maxilar.|-Possui a cúspide vestibular bem maior que a lingual.|-Geralmente possui duas raízes. |-Devido a diferença de altura e volume das cúspides linguais, quando observamos o |1º premolar superior por lingual visualizamos grande parte da cúspide vestibular.| -Face oclusal com contorne pentagonal.|-A porção vestibular da face oclusal é maior em tamanho e volume em relação a porção lingual.|-O sulco central é retilíneo e deslocado para lingual.|-Devido ao volume das cúspides temos uma convergência acentuada das faces proximais para palatina no sentido horizontal.| (pt)
- The maxillary first premolar is one of two teeth located in the upper jaw, laterally (away from the midline of the face) from both the maxillary canines of the mouth but mesial (toward the midline of the face) from both maxillary second premolars. The function of this premolar is similar to that of canines in regard to tearing being the principal action during mastication, commonly known as chewing. There are two cusps on maxillary first premolars, and the buccal (closest to the cheek) cusp is sharp enough to resemble the prehensile teeth found in carnivorous animals. There are no deciduous maxillary premolars. Around 10-11 years of age, the primary molars are shed and the permanent premolars erupt in their place. It takes about 3 years for the adult premolar and its root to fully calcify. (en)
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| - Maxillary first premolar (en)
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| - Maxillary first premolar (en)
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| - Image:Maxillary first premolars01-01-06.png (en)
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| - Maxillary first premolar (en)
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| - Maxillary first premolars01-01-06.png (en)
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| - Maxillary first premolars of permanent teeth marked in red. There are deciduous and permanent premolars. (en)
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| - Ο πρώτος προγόμφιος άνω γνάθου είναι οπίσθιο δόντι και ανήκει στην ομάδα των προγομφίων. Είναι το τέταρτο δόντι του εκατέρωθεν της , τοποθετημένο ανάμεσα στον κυνόδοντα προς την εγγύς όμορη επιφάνειά του και στον προς την άπω όμορη επιφάνειά του. Ο προγόμφιος βοηθά στην άλεση της τροφής. Ανατέλλει κατά το δέκατο έτος. Ο νεογιλός φραγμός δεν έχει προγόμφιους. (el)
- The maxillary first premolar is one of two teeth located in the upper jaw, laterally (away from the midline of the face) from both the maxillary canines of the mouth but mesial (toward the midline of the face) from both maxillary second premolars. The function of this premolar is similar to that of canines in regard to tearing being the principal action during mastication, commonly known as chewing. There are two cusps on maxillary first premolars, and the buccal (closest to the cheek) cusp is sharp enough to resemble the prehensile teeth found in carnivorous animals. There are no deciduous maxillary premolars. Around 10-11 years of age, the primary molars are shed and the permanent premolars erupt in their place. It takes about 3 years for the adult premolar and its root to fully calcify.Due to its long buccal root with narrow root canal and short palatal root with wide root canal, the upper 1st premolar is very prone to fracture during exodontia, hence, it is sometimes referred to some dentists as the "King of Fracture".In the universal system of notation, the permanent maxillary premolars are designated by a number. The right permanent maxillary first premolar is known as "5", and the left one is known as "12". 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 first premolars would have the same number, "4", 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 first premolar is known as "14", and the left one is known as "24". (en)
- I premolari superiori hanno la caratteristica di essere simili tra loro, e disposti in serie discendente: il primo è dunque più grande del secondo, a differenza degli inferiori. I premolari superiori possiedono due cuspidi di misura pressoché equivalente, anche se la più grande è sempre la vestibolare. Il primo premolare superiore ha mediamente un'altezza di 22.5 mm, di cui 8.5 coronali e 14 radicolari e un diametro mesiodistale piuttosto stretto (7 mm), e uno vestibolo-palatale di 9 mm, come il secondo premolare superiore. (it)
- 上顎第一小臼歯（じょうがくだいいちしょうきゅうし、英語: maxillary first premolar）は上顎歯列で犬歯の遠心側に隣接する歯のこと。正中から四番目にあることから上顎4番とも言う。近心側隣接歯は上顎犬歯、遠心側隣接歯は上顎第二小臼歯、対合歯は下顎第一小臼歯と下顎第二小臼歯である。歯冠が完成するのは五～六歳時、萌出は十～十一歳、歯根完成は十二～十三歳の時である。 (ja)
- O Primeiro pré-molar superior é um dente inserido osso maxilar.|-Possui a cúspide vestibular bem maior que a lingual.|-Geralmente possui duas raízes. |-Devido a diferença de altura e volume das cúspides linguais, quando observamos o |1º premolar superior por lingual visualizamos grande parte da cúspide vestibular.| -Face oclusal com contorne pentagonal.|-A porção vestibular da face oclusal é maior em tamanho e volume em relação a porção lingual.|-O sulco central é retilíneo e deslocado para lingual.|-Devido ao volume das cúspides temos uma convergência acentuada das faces proximais para palatina no sentido horizontal.| (pt)
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