Trend-analysis of dental hard-tissue conditions as function of tooth age

Amnah A. Algarni, Peter S. Ungar, Frank Lippert, Esperanza Martinez Mier, George J. Eckert, Carlos González-Cabezas, Anderson Hara

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Objective: This retrospective in-vitro study investigated tooth age effect on dental hard-tissue conditions. Methods: Unidentified extracted premolars (n = 1500) were collected and their individual age was estimated (10–100 (±10) years old (yo)) using established dental forensic methods Dental caries, fluorosis and tooth wear (TW) were assessed using the International Caries Detection and Assessment System (ICDAS; 0–5 for crown and 0–2 for root), Thylstrup-Fejerskov (TFI; 0–9) and Basic Erosive Wear Examination (BEWE; 0–3) indices, respectively. Staining and color were assessed using the modified-Lobene (MLI) (0–3) and VITA shade (B1-C4) indices, respectively. Relationships between indices and age were tested using regression models. Results: Starting at age ∼10yo, presence of caries increased from 35% to 90% at ∼50yo (coronal), and from 0% to 35% at ∼80yo (root). Caries severity increased from ICDAS 0.5 to 2 at ∼40yo and from ICDAS 0 to 0.5 at ∼60yo for coronal and root caries, respectively. Presence of TW increased from 25% (occlusal) and 15% (smooth-surfaces) to 100% at ∼80yo. TW severity increased from BEWE 0.5 to 2 at ∼50yo (occlusal) and ∼0.3 to 1.5 at ∼50yo (smooth-surfaces). Percentage and severity of fluorosis decreased from 70% to 10% at ∼80yo, and from TFI 1 to 0 at ∼90yo, respectively. Percentage of extrinsic staining increased from 0% to 85% at ∼80yo and its severity increased from MLI 0 to 2 at ∼70yo. Color changed from A3 to B3 at ∼50yo (crown), and from C2 to A4 at ∼85yo (root). Conclusions: Aging is proportionally related to the severity of caries, TW, staining, and inversely to dental fluorosis. Teeth become darker with age.

Original languageEnglish (US)
JournalJournal of Dentistry
DOIs
StateAccepted/In press - Jan 1 2018

Fingerprint

Tooth Wear
Tooth
Dental Fluorosis
Staining and Labeling
Crowns
Color
Root Caries
Bicuspid
Dental Caries

Keywords

  • Aging
  • Caries
  • Dentin
  • Enamel
  • Fluorosis
  • Tooth color
  • Tooth wear

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Trend-analysis of dental hard-tissue conditions as function of tooth age. / Algarni, Amnah A.; Ungar, Peter S.; Lippert, Frank; Martinez Mier, Esperanza; Eckert, George J.; González-Cabezas, Carlos; Hara, Anderson.

In: Journal of Dentistry, 01.01.2018.

Research output: Contribution to journalArticle

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title = "Trend-analysis of dental hard-tissue conditions as function of tooth age",
abstract = "Objective: This retrospective in-vitro study investigated tooth age effect on dental hard-tissue conditions. Methods: Unidentified extracted premolars (n = 1500) were collected and their individual age was estimated (10–100 (±10) years old (yo)) using established dental forensic methods Dental caries, fluorosis and tooth wear (TW) were assessed using the International Caries Detection and Assessment System (ICDAS; 0–5 for crown and 0–2 for root), Thylstrup-Fejerskov (TFI; 0–9) and Basic Erosive Wear Examination (BEWE; 0–3) indices, respectively. Staining and color were assessed using the modified-Lobene (MLI) (0–3) and VITA shade (B1-C4) indices, respectively. Relationships between indices and age were tested using regression models. Results: Starting at age ∼10yo, presence of caries increased from 35{\%} to 90{\%} at ∼50yo (coronal), and from 0{\%} to 35{\%} at ∼80yo (root). Caries severity increased from ICDAS 0.5 to 2 at ∼40yo and from ICDAS 0 to 0.5 at ∼60yo for coronal and root caries, respectively. Presence of TW increased from 25{\%} (occlusal) and 15{\%} (smooth-surfaces) to 100{\%} at ∼80yo. TW severity increased from BEWE 0.5 to 2 at ∼50yo (occlusal) and ∼0.3 to 1.5 at ∼50yo (smooth-surfaces). Percentage and severity of fluorosis decreased from 70{\%} to 10{\%} at ∼80yo, and from TFI 1 to 0 at ∼90yo, respectively. Percentage of extrinsic staining increased from 0{\%} to 85{\%} at ∼80yo and its severity increased from MLI 0 to 2 at ∼70yo. Color changed from A3 to B3 at ∼50yo (crown), and from C2 to A4 at ∼85yo (root). Conclusions: Aging is proportionally related to the severity of caries, TW, staining, and inversely to dental fluorosis. Teeth become darker with age.",
keywords = "Aging, Caries, Dentin, Enamel, Fluorosis, Tooth color, Tooth wear",
author = "Algarni, {Amnah A.} and Ungar, {Peter S.} and Frank Lippert and {Martinez Mier}, Esperanza and Eckert, {George J.} and Carlos Gonz{\'a}lez-Cabezas and Anderson Hara",
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AU - Algarni, Amnah A.

AU - Ungar, Peter S.

AU - Lippert, Frank

AU - Martinez Mier, Esperanza

AU - Eckert, George J.

AU - González-Cabezas, Carlos

AU - Hara, Anderson

PY - 2018/1/1

Y1 - 2018/1/1

N2 - Objective: This retrospective in-vitro study investigated tooth age effect on dental hard-tissue conditions. Methods: Unidentified extracted premolars (n = 1500) were collected and their individual age was estimated (10–100 (±10) years old (yo)) using established dental forensic methods Dental caries, fluorosis and tooth wear (TW) were assessed using the International Caries Detection and Assessment System (ICDAS; 0–5 for crown and 0–2 for root), Thylstrup-Fejerskov (TFI; 0–9) and Basic Erosive Wear Examination (BEWE; 0–3) indices, respectively. Staining and color were assessed using the modified-Lobene (MLI) (0–3) and VITA shade (B1-C4) indices, respectively. Relationships between indices and age were tested using regression models. Results: Starting at age ∼10yo, presence of caries increased from 35% to 90% at ∼50yo (coronal), and from 0% to 35% at ∼80yo (root). Caries severity increased from ICDAS 0.5 to 2 at ∼40yo and from ICDAS 0 to 0.5 at ∼60yo for coronal and root caries, respectively. Presence of TW increased from 25% (occlusal) and 15% (smooth-surfaces) to 100% at ∼80yo. TW severity increased from BEWE 0.5 to 2 at ∼50yo (occlusal) and ∼0.3 to 1.5 at ∼50yo (smooth-surfaces). Percentage and severity of fluorosis decreased from 70% to 10% at ∼80yo, and from TFI 1 to 0 at ∼90yo, respectively. Percentage of extrinsic staining increased from 0% to 85% at ∼80yo and its severity increased from MLI 0 to 2 at ∼70yo. Color changed from A3 to B3 at ∼50yo (crown), and from C2 to A4 at ∼85yo (root). Conclusions: Aging is proportionally related to the severity of caries, TW, staining, and inversely to dental fluorosis. Teeth become darker with age.

AB - Objective: This retrospective in-vitro study investigated tooth age effect on dental hard-tissue conditions. Methods: Unidentified extracted premolars (n = 1500) were collected and their individual age was estimated (10–100 (±10) years old (yo)) using established dental forensic methods Dental caries, fluorosis and tooth wear (TW) were assessed using the International Caries Detection and Assessment System (ICDAS; 0–5 for crown and 0–2 for root), Thylstrup-Fejerskov (TFI; 0–9) and Basic Erosive Wear Examination (BEWE; 0–3) indices, respectively. Staining and color were assessed using the modified-Lobene (MLI) (0–3) and VITA shade (B1-C4) indices, respectively. Relationships between indices and age were tested using regression models. Results: Starting at age ∼10yo, presence of caries increased from 35% to 90% at ∼50yo (coronal), and from 0% to 35% at ∼80yo (root). Caries severity increased from ICDAS 0.5 to 2 at ∼40yo and from ICDAS 0 to 0.5 at ∼60yo for coronal and root caries, respectively. Presence of TW increased from 25% (occlusal) and 15% (smooth-surfaces) to 100% at ∼80yo. TW severity increased from BEWE 0.5 to 2 at ∼50yo (occlusal) and ∼0.3 to 1.5 at ∼50yo (smooth-surfaces). Percentage and severity of fluorosis decreased from 70% to 10% at ∼80yo, and from TFI 1 to 0 at ∼90yo, respectively. Percentage of extrinsic staining increased from 0% to 85% at ∼80yo and its severity increased from MLI 0 to 2 at ∼70yo. Color changed from A3 to B3 at ∼50yo (crown), and from C2 to A4 at ∼85yo (root). Conclusions: Aging is proportionally related to the severity of caries, TW, staining, and inversely to dental fluorosis. Teeth become darker with age.

KW - Aging

KW - Caries

KW - Dentin

KW - Enamel

KW - Fluorosis

KW - Tooth color

KW - Tooth wear

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