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Table 1 Remaining force of the elastomeric chains in each group at different time points. (unit: g)

From: Effect of filament types and loops number on the force degradation of elastomeric chains used for orthodontic treatment: an in-vitro study

Experimental groups

4 h

24 h

7 days

14 days

21 days

28 days

A1B1

191.0 ± 7.4

175.6 ± 11.7

168.9 ± 10.1

161.2 ± 7.7

155.0 ± 10.6

147.8 ± 11.3

A1B2

195.4 ± 6.9

190.0 ± 5.5

186.9 ± 11.4

183.0 ± 8.0

180.7 ± 11.9

175.3 ± 13.4

A1B3

195.5 ± 7.0

189.6 ± 5.6

186.8 ± 11.6

183.7 ± 8.2

181.6 ± 12.1

177.5 ± 12.8

A2B1

184.1 ± 6.4

170.7 ± 7.3

161.0 ± 10.2

158.1 ± 5.3

150.1 ± 11.2

140.8 ± 6.5

A2B2

198.5 ± 8.9

175.3 ± 9.5

170.1 ± 8.3

168.8 ± 9.5

167.8 ± 10.8

167.0 ± 8.8

A2B3

202.3 ± 9.7

178.8 ± 10.4

170.6 ± 9.1

170.1 ± 10.3

168.3 ± 11.8

167.3 ± 9.6

A3B1

177.2 ± 5.0

153.5 ± 10.4

141.9 ± 12.8

131.6 ± 9.3

123.9 ± 6.4

115.1 ± 11.8

A3B2

197.4 ± 7.0

169.2 ± 11.2

156.5 ± 9.6

146.4 ± 7.3

137.6 ± 10.2

130.1 ± 10.8

A3B3

204.6 ± 7.7

180.0 ± 12.3

167.4 ± 10.6

157.4 ± 8.1

149.2 ± 11.2

142.6 ± 11.9

  1. Values are expressed as mean ± SD. A1, A2, and A3 are the groups of close, medium, and long elastomeric chains, respectively. B1, B2, and B3 represent elastomeric chains of four, five, and six loops, respectively