Aging By Teeth – 13 – 18 years (Adult Horses)

Doc-t August 6, 2020
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Reviewing these images is a long process if you go through the whole set. The idea is to notice all the differences and variability seen within each age. Then, as the age becomes greater, notice the increased variability. Also, note that some horses’ left and right sides are different, yielding a different age. The difference is caused by the horse’s tongue movement, jaw movement or both. The image data is the evidence I give for the horse’s age.

I call this group between 13 and 18 years the “Adult Horses.”

Aging by teeth

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⬇︎ Click or tap on any image to fully open it. Swipe or click the arrow to move through the gallery. ⬇︎

13-year-olds

  • “Galvayne’s groove” is an indentation (or groove) that occurs on the upper corner incisors (103 and 203).
  • It is located on the labial surface and parallels the front and back edge of the tooth.
  • Between 10 and 20 years it will progressively extend the length of the tooth.
  • Between 21 and 30 years it will progressively disappear starting at the gum line until it is gone by 30.
  • The groove at the gum line elongates slightly more along the length of the tooth approximately ¼ the length of the tooth in the 13th year of eruption.
6/6/2001 13yr Tennessee Walker G
6/6/2001 13yr Tennessee Walker G
6/6/2001 13yr Tennessee Walker G
6/6/2001 13yr Tennessee Walker G
4/16/2000 = 13yr 6mo
4/16/2000 = 13yr 6mo
4/16/2000 = 13yr 6mo
4/16/2000 = 13yr 6mo
5/26/2000 = 13yr 3 mo
5/26/2000 = 13yr 3 mo
5/26/2000 = 13yr 3 mo
5/26/2000 = 13yr 3 mo
3/21/2000 = 13yr 5mo TB G tattoo = D
3/21/2000 = 13yr 5mo TB G tattoo = D
3/21/2000 = 13yr 5mo TB G tattoo = D
3/21/2000 = 13yr 5mo TB G tattoo = D
4/15/2000 = 13yr 4mo Morgan M
4/15/2000 = 13yr 4mo Morgan M
4/15/2000 = 13yr 4mo Morgan M
4/15/2000 = 13yr 4mo Morgan M
12/5/2000 = 13yr 8mo WB G
12/5/2000 = 13yr 8mo WB G
12/5/2000 = 13yr 8mo WB G
12/5/2000 = 13yr 8mo WB G
5/3/2000 = D 2000 = 13yr TB G
5/3/2000 = D 2000 = 13yr TB G
5/3/2000 = D 2000 = 13yr TB G
5/3/2000 = D 2000 = 13yr TB G
1/7/1999 = 13yr 6mo Trot y Galope S
1/7/1999 = 13yr 6mo Trot y Galope S
1/7/1999 = 13yr 6mo Trot y Galope S
1/7/1999 = 13yr 6mo Trot y Galope S
5/11/2000 = 13yr 2mo WB G
5/11/2000 = 13yr 2mo WB G
5/11/2000 = 13yr 2mo WB G
5/11/2000 = 13yr 2mo WB G
3/28/2000 = 13yr 3mo – Cap remnant next to 403
3/28/2000 = 13yr 3mo
3/28/2000 = 13yr 3mo
3/28/2000 = 13yr 3mo – Cap remnant next to 403
3/16/2000 = 13yr 3mo
3/16/2000 = 13yr 3mo
3/16/2000 = 13yr 3mo
3/16/2000 = 13yr 3mo
3/13/2000 = 13yr 2mo WB G – Horse A – relaxed incisors in a natural position
3/13/2000 = 13yr 2mo WB G – Horse A – relaxed incisors in a natural position
3/13/2000 = 13yr 2mo WB G – Horse A – relaxed incisors in a natural position
3/13/2000 = 13yr 2mo WB G – Horse A – relaxed incisors in a natural position

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14-year-olds

  • “Galvayne’s groove” is an indentation (or groove) that occurs on the upper corner incisors (103 and 203).
  • It is located on the labial surface and parallels the front and back edge of the tooth.
  • Between 10 and 20 years, it will progressively extend the length of the tooth.
  • Between 21 and 30 years, it will progressively disappear, starting at the gum line until it is gone by 30.
  • The groove at the gum line elongates slightly more along the length of the tooth, approximately 1/3 the length of the tooth in the 14th year of the eruption.
Charleston 14 yr Fresian Sport Horse G
Charleston 14 yr Fresian Sport Horse G
Charleston 14 yr Fresian Sport Horse G
Charleston 14 yr Fresian Sport Horse G
tattoo = C = 14yr TB G
tattoo = C = 14yr TB G
tattoo = C = 14yr TB G
tattoo = C = 14yr TB G
May 30, 1999 = 14yr Trakehner G
May 30, 1999 = 14yr Trakehner G
May 30, 1999 = 14yr Trakehner G
May 30, 1999 = 14yr Trakehner G
4/24/1999 = 14yr 3mo TB M
4/24/1999 = 14yr 3mo TB M
4/24/1999 = 14yr 3mo TB M
4/24/1999 = 14yr 3mo TB M
1/1/1999 = 14yr G TB tattoo = C = 1999
1/1/1999 = 14yr G TB tattoo = C = 1999
1/1/1999 = 14yr G TB tattoo = C = 1999
1/1/1999 = 14yr G TB tattoo = C = 1999

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15-year-olds

  • “Galvayne’s groove” is an indentation (or groove) that occurs on the upper corner incisors (103 and 203).
  • It is located on the labial surface and parallels the front and back edge of the tooth.
  • Between 10 and 20 years, it will progressively extend the length of the tooth.
  • Between 21 and 30 years, it will progressively disappear, starting at the gum line until it is gone by 30.
  • The groove at the gum line elongates slightly more along the length of the tooth, approximately 1/2 the length of the tooth in the 15th year of the eruption.
  • Galvayne’s Groove half the length at 15.”
4/6/1998 = 15yr 6mo WB M
4/6/1998 = 15yr 6mo WB M
4/6/1998 = 15yr 6mo WB M
4/6/1998 = 15yr 6mo WB M
4/24/1998 = 15yr 5mo M QH
4/24/1998 = 15yr 5mo M QH
4/24/1998 = 15yr 5mo M QH
4/24/1998 = 15yr 5mo M QH
1998 15yr old
1998 15yr old
1998 15yr old
1998 15yr old
5/16/1998 = 15yr 3mo Morgan S
5/16/1998 = 15yr 3mo Morgan S
5/16/1998 = 15yr 3mo Morgan S
5/16/1998 = 15yr 3mo Morgan S
7/19/1998 = 15yr Hackney G
7/19/1998 = 15yr Hackney G
7/19/1998 = 15yr Hackney G
7/19/1998 = 15yr Hackney G
2/12/1998 = B= 15yr 5mo
2/12/1998 = B= 15yr 5mo
2/12/1998 = B= 15yr 5mo
2/12/1998 = B= 15yr 5mo
6/28/1998 = 15yr Mini M
6/28/1998 = 15yr Mini M
6/28/1998 = 15yr Mini M
6/28/1998 = 15yr Mini M
4/1/1998 = 15yr QH M
4/1/1998 = 15yr QH M
4/1/1998 = 15yr QH M
4/1/1998 = 15yr QH M

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16-year-olds

  • “Galvayne’s groove” is an indentation (or groove) that occurs on the upper corner incisors (103 and 203).
  • It is located on the labial surface and parallels the front and back edge of the tooth.
  • Between 10 and 20 years it will progressively extend the length of the tooth.
  • Between 21 and 30 years it will progressively disappear starting at the gum line until it is gone by 30.
  • The groove at the gum line elongates slightly more along the length of the tooth a little over half the length of the tooth in the 16th year of eruption.
2/15/1998 = 16yr 4mo QH M
2/15/1998 = 16yr 4mo QH M
2/15/1998 = 16yr 4mo QH M
2/15/1998 = 16yr 4mo QH M
3/21/1998 = 16yr 3mo Mini M
3/21/1998 = 16yr 3mo Mini M
3/21/1998 = 16yr 3mo Mini M
3/21/1998 = 16yr 3mo Mini M
5/28/1998 = 16yr 1mo Mini M
5/28/1998 = 16yr 1mo Mini M
5/28/1998 = 16yr 1mo Mini M
5/28/1998 = 16yr 1mo Mini M
2/10/1997 = 16yr 7mo QH G
2/10/1997 = 16yr 7mo QH G
2/10/1997 = 16yr 7mo QH G
2/10/1997 = 16yr 7mo QH G
6/26/1997 = 16yr 2mo WB G
6/26/1997 = 16yr 2mo WB G
6/26/1997 = 16yr 2mo WB G
6/26/1997 = 16yr 2mo WB G
May 12, 1997 = 16yr Reg APH mare
May 12, 1997 = 16yr Reg APH mare
May 12, 1997 = 16yr Reg APH mare
May 12, 1997 = 16yr Reg APH mare
2/14/1997 = 16yr 5mo – Horses G (presumptive) – Early stage of EOTRH? hyperlpasia around canines, #404 early necrosis, bulbous appearance of incisors. No pain of difficulty in using incisors.
2/14/1997 = 16yr 5mo – Horses G (presumptive) – Early stage of EOTRH? hyperlpasia around canines, #404 early necrosis, bulbous appearance of incisors, and gum resorption around 201. No pain of difficulty in using incisors.
2/14/1997 = 16yr 5mo – Horses G (presumptive) – Early stage of EOTRH? hyperlpasia around canines, #404 early necrosis, bulbous appearance of incisors. No pain of difficulty in using incisors.
2/14/1997 = 16yr 5mo – Horses G (presumptive) – Early stage of EOTRH? hyperlpasia around canines, #404 early necrosis, bulbous appearance of incisors. No pain of difficulty in using incisors.
2/22/1997 = 16yr 4mo
2/22/1997 = 16yr 4mo
2/22/1997 = 16yr 4mo
2/22/1997 = 16yr 4mo
5/15/1997 = 16yr
5/15/1997 = 16yr
5/15/1997 = 16yr
5/15/1997 = 16yr
1/15/1997 = 16yr 4mo WB G
1/15/1997 = 16yr 4mo WB G
1/15/1997 = 16yr 4mo WB G
1/15/1997 = 16yr 4mo WB G

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17-year-olds

  • “Galvayne’s groove” is an indentation (or groove) that occurs on the upper corner incisors (103 and 203).
  • It is located on the labial surface and parallels the front and back edge of the tooth.
  • Between 10 and 20 years, it will progressively extend the length of the tooth.
  • Between 21 and 30 years, it will progressively disappear, starting at the gum line until it is gone by 30.
  • The groove at the gum line elongates slightly more along the length of the tooth, a little over half the length of the tooth in the 17th year of the eruption.
  • (I don’t know why I could only find 2 horses who were 17-year-olds!)
Maggie 17yr QH M
Maggie 17yr QH M
Maggie 17yr QH M
Maggie 17yr QH M
1/3/1996 = 17yr 6mo Paso Fino M
1/3/1996 = 17yr 6mo Paso Fino M
1/3/1996 = 17yr 6mo Paso Fino M
1/3/1996 = 17yr 6mo Paso Fino M

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18-year-olds

  • “Galvayne’s groove” is an indentation (or groove) that occurs on the upper corner incisors (103 and 203).
  • It is located on the labial surface and parallels the front and back edge of the tooth.
  • Between 10 and 20 years it will progressively extend the length of the tooth.
  • Between 21 and 30 years it will progressively disappear starting at the gum line until it is gone by 30.
  • The groove at the gum line elongates slightly more along the length of the tooth about ¾ the length of the tooth in the 18th year of eruption.
5/27/1997 = 18yr TB G
5/27/1997 = 18yr TB G
5/27/1997 = 18yr TB G
5/27/1997 = 18yr TB G
5/1/1995 = 18yr 4mo, Horse I – moderate EOTRH
5/1/1995 = 18yr 4mo, Horse I – moderate EOTRH
5/1/1995 = 18yr 4mo, Horse I – moderate EOTRH
5/1/1995 = 18yr 4mo, Horse I – moderate EOTRH
6/19/1995 = 18yr American Hanovarian M
6/19/1995 = 18yr American Hanovarian M
6/19/1995 = 18yr American Hanovarian M
6/19/1995 = 18yr American Hanovarian M
7/1/1995 = 18yr Columbian Trocha M
7/1/1995 = 18yr Columbian Trocha M
7/1/1995 = 18yr Columbian Trocha M
7/1/1995 = 18yr Columbian Trocha M

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Categories: 2_Topics, Aging Project

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