US6413083B1
Expired / Lapsed
US
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Computerized system and method for correcting tooth-size discrepancies
Assignee: Dentsply Research and Development Corp
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Filing: 1999-11-09
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Granted: 2002-07-02
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Expires: 2019-11-09
Abstract
Abstract A computerized system and method for diagnosing a tooth-size discrepancy and recommending an ideal arch size based on the size of an individual patient's teeth. The computerized system includes a central processing unit, a first storage device, a second storage device, a dynamic memory device, and input/output devices. The input devices include a computerized caliper for measuring the mesiodistal width of teeth and directly inputting the measurements into the computerized system. The computerized system and method determine the existence of a tooth-size discrepancy, the necessary anatomical correction, at least one tooth responsible for the tooth-size discrepancy, and a recommended arch wire size.
Inventors
- 👤 David C. Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:50
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/04; A61C7/00; A61C7/002
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
131 words
A system for selecting at least one arch wire, comprising: an input device inputting at least one of: i) at least one sum of a plurality of tooth sizes, and ii) a plurality of tooth sizes, a processor, the input device being interfaced to the processor and the processor receiving from the input device the at least one of i) the at least one sum, and ii) the plurality of tooth sizes, if the processor receives the plurality of tooth sizes from the input device, the processor determines the at least one sum as a function of the plurality of tooth sizes, the processor selecting at least one arch wire as a function of the at least one sum; and a display device displaying the selected at least one arch wire.
Claim 2
Independent Claim
131 words
A system for selecting at least one arch wire, comprising: an input device inputting at least one of: i) at least one sum of a plurality of tooth sizes, and ii) a plurality of tooth sizes, a processor, the input device being interfaced to the processor and the processor receiving from the input device the at least one of i) the at least one sum, and ii) the plurality of tooth sizes, if the processor receives the plurality of tooth sizes from the input device, the processor determines the at least one sum as a function of the plurality of tooth sizes, the processor selecting at least one arch wire as a function of the at least one sum; and a display device displaying the selected at least one arch wire.
Claim 3
Dependent Claim
15 words
The system according to claim 1 , wherein the input device is a digital caliper.
Claim 4
Dependent Claim
103 words
The system according to claim 2 , wherein the at least one sum includes a sum of tooth sizes of a maxillary arch and a sum of tooth sizes of a mandibular arch, the processor determines at least one of an anatomical correction in the maxillary arch and an anatomical correction in the mandibular arch as a function of the sum of tooth sizes of the maxillary arch and the sum of tooth sizes of the mandibular arch, and the display device displays the at least one of the anatomical correction in the maxillary arch and the anatomical correction in the mandibular arch.
Claim 5
Dependent Claim
62 words
The system according to claim 3 , wherein the processor determines the anatomical correction in the maxillary arch using the following formula: X=L/R−U, wherein, X is the anatomical correction in the maxillary arch, L is the sum of the tooth sizes of the mandibular arch, R is a ratio, and U is the sum of the tooth sizes of the maxillary arch.
Claim 6
Dependent Claim
24 words
The system according to claim 4 , wherein the ratio is one of 0.772 for a six-tooth analysis and 0.913 for a twelve-tooth analysis.
Claim 7
Dependent Claim
66 words
The system according to claim 3 , wherein the processor determines the anatomical correction in the mandibular arch using the following formula: Y =( U×R ) −L, wherein, Y is the anatomical correction in the mandibular arch, U is the sum of the tooth sizes of the maxillary arch, R is a ratio, and L is the sum of the tooth sizes of the mandibular arch.
Claim 8
Dependent Claim
23 words
The system according to claim 6 , wherein the ratio is one of 0.772 for a six-tooth analysis and 0.913 for twelve-tooth analysis.
Claim 9
Dependent Claim
57 words
The system according to claim 1 , wherein at least one sum includes a sum of tooth sizes of a maxillary arch and a sum of tooth sizes of a mandibular arch, and wherein the selected at least one arch wire includes an arch wire for the maxillary arch and an arch wire for the mandibular arch.
Claim 10
Dependent Claim
61 words
The system according to claim 8 , wherein if the sum of tooth sizes of the maxillary arch is less than or equal to 44.5 mm, the arch wire selected for the maxillary arch has a radius of curvature of approximately 25.4125 mm and the arch wire selected for the mandibular arch has a radius of curvature of approximately 23.0375 mm.
Claim 11
Dependent Claim
60 words
The system according to claim 8 , wherein if the sum of tooth sizes of the maxillary arch is between 44.5 mm and 49.4 mm, the arch wire selected for the maxillary arch has a radius of curvature of approximately 26.75 mm and the arch wire selected for the mandibular arch has a radius of curvature of approximately 24.25 mm.
Claim 12
Dependent Claim
57 words
The system according to claim 8 , wherein if the sum of tooth sizes of the maxillary arch is at least 48.4 mm, the arch wire selected for the maxillary arch has a radius of curvature of approximately 28.0875 mm and the arch wire selected for the mandibular arch has a radius of curvature of 25.4625 mm.
Claim 13
Dependent Claim
14 words
The system according to claim 1 , wherein the input device is a keyboard.
Claim 14
Independent Claim
108 words
A system for determining an anatomical correction for at least one of a maxillary arch and a mandibular arch, comprising: a caliper for measuring at least one tooth size; a processor, the caliper being interfaced to the processor, the processor receiving from the caliper the at least one tooth size, the processor determining at least one sum of a plurality of tooth sizes as a function of the least one tooth size, the processor determining the anatomical correction for the at least one of the maxillary arch and the mandibular arch as a function of the least one sum; and a display device displaying the determined anatomical correction.
Claim 15
Independent Claim
108 words
A system for determining an anatomical correction for at least one of a maxillary arch and a mandibular arch, comprising: a caliper for measuring at least one tooth size; a processor, the caliper being interfaced to the processor, the processor receiving from the caliper the at least one tooth size, the processor determining at least one sum of a plurality of tooth sizes as a function of the least one tooth size, the processor determining the anatomical correction for the at least one of the maxillary arch and the mandibular arch as a function of the least one sum; and a display device displaying the determined anatomical correction.
Claim 16
Dependent Claim
75 words
The system according to claim 13 , wherein the at least one sum includes a sum of tooth sizes of the maxillary arch and a sum of tooth sizes of the mandibular arch, the processor determining the anatomical correction for the at least one of the maxillary arch and the mandibular arch as a function of the sum of tooth sizes of the maxillary arch and the sum of tooth sizes of the mandibular arch.
Claim 17
Dependent Claim
62 words
The system according to claim 13 , wherein the processor determines the anatomical correction in the maxillary arch using the following formula: X=L/R−U, wherein, X is the anatomical correction in the maxillary arch, L is the sum of the tooth sizes of the mandibular arch, R in the ratio, and U in the sum of the tooth sizes of the maxillary arch.
Claim 18
Dependent Claim
24 words
The system according to claim 15 , wherein the ratio is one of 0.772 for a six-tooth analysis and 0.913 for a twelve-tooth analysis.
Claim 19
Dependent Claim
66 words
The system according to claim 13 , wherein the processor determines the anatomical correction in the mandibular arch using the following formula: Y =( U×R ) −L, wherein, Y is the anatomical correction in the mandibular arch, U is the sum of the tooth sizes of the maxillary arch, R is a ratio, and L is the sum of the tooth sizes of the mandibular arch.
Claim 20
Dependent Claim
24 words
The system according to claim 17 , wherein the ratio is one of 0.772 for a six-tooth analysis and 0.913 for a twelve-tooth analysis.
Claim 21
Dependent Claim
81 words
A computerized method for selecting at least one arch wire, comprising the steps of: receiving from an input device by a processor at least one of: i) at least one sum of a plurality of tooth sizes, and ii) a plurality of tooth sizes; if the plurality of tooth sizes are received, determining by the processor the at least one sum; and selecting by the processor the at least one arch wire as a function of the at least one sum.
Claim 22
Dependent Claim
81 words
A computerized method for selecting at least one arch wire, comprising the steps of: receiving from an input device by a processor at least one of: i) at least one sum of a plurality of tooth sizes, and ii) a plurality of tooth sizes; if the plurality of tooth sizes are received, determining by the processor the at least one sum; and selecting by the processor the at least one arch wire as a function of the at least one sum.
Claim 23
Dependent Claim
20 words
The computerized method according to claim 19 further comprising the step of: displaying the selected at least one arch wire.
Claim 24
Dependent Claim
16 words
The computerized system according to claim 19 , wherein the input device is a digital caliper.
Claim 25
Dependent Claim
106 words
The computerized method according to claim 19 , wherein the at least one sum includes a sum of tooth sizes of a maxillary arch and sum of tooth sizes of a mandibular arch, further comprising the steps of: determining by the processor at least one of an anatomical correction in the maxillary arch and an anatomical correction in the mandibular arch as a function of the sum of tooth sizes of the maxillary arch and the sum of tooth sizes of the mandibular arch; and displaying the at least one of the anatomical correction in the maxillary arch and the anatomical correction in the mandibular arch.
Claim 26
Dependent Claim
89 words
The computerized method according to claim 22 , wherein the step of determining the at least one of the anatomical correction in the maxillary arch and the anatomical correction in the mandibular arch includes a step of determining the anatomical correction in the maxillary arch using the following formula: X=L/R−U, wherein, X is the anatomical correction in the maxillary arch, L is the sum of the tooth sizes of the mandibular arch, R is a ratio, and U is the sum of the tooth sizes of the maxillary arch.
Claim 27
Dependent Claim
25 words
The computerized method according to claim 23 , wherein the ratio is one of 0.772 for a six-tooth analysis and 0.913 for a twelve-tooth analysis.
Claim 28
Dependent Claim
93 words
The computerized method according to claim 22 , wherein the step of determining the at least one of the anatomical correction in the maxillary arch and the anatomical correction in the mandibular arch includes a step of determining the anatomical correction in the mandibular arch using the following formula: Y =( U×R ) −L, wherein, Y is the anatomical correction in the mandibular arch, U is the sum of the tooth sizes of the maxillary arch, R is a ratio, and L is the sum of the tooth sizes of the mandibular arch.
Claim 29
Dependent Claim
25 words
The computerized method according to claim 25 , wherein the ratio is one of 0.772 for a six-tooth analysis and 0.913 for a twelve-tooth analysis.
Claim 30
Dependent Claim
96 words
The computerized method according to claim 19 , wherein the at least one sum includes a sum of tooth sizes in a maxillary arch and a sum of tooth sizes in a mandibular arch, wherein the selecting step includes a step of: if the sum of the tooth sizes in the maxillary arch is less than or equal to 44.5 mm, selecting an arch wire for the maxillary arch having a radius of curvature of approximately 25.4125 mm and selecting an arch wire for the mandibular arch having a radius of curvature of approximately 23.0375 mm.
Claim 31
Dependent Claim
94 words
The computerized method according to claim 19 , wherein the at least one sum includes a sum of tooth sizes in a maxillary arch and a sum of tooth sizes in a mandibular arch, wherein the selecting step includes a step of: if the sum of tooth sizes of the maxillary arch is between 44.5 mm and 49.4 mm, selecting an arch wire for the maxillary arch having a radius of curvature of approximately 26.75 mm and selecting an arch wire for the mandibular arch having a radius of curvature of approximately 24.25 mm.
Claim 32
Dependent Claim
91 words
The computerized method according to claim 19 , wherein the at least one sum includes a sum of tooth sizes in a maxillary arch and a sum of tooth sizes in a mandibular arch, wherein the selecting step includes a step of: if the sum of tooth sizes of the maxillary arch is at least 48.4 mm, selecting an arch wire for the maxillary arch having a radius of curvature of approximately 28.0875 mm and selecting an arch wire for the mandibular arch having a radius of curvature of 25.4625 mm.
Claim 33
Dependent Claim
14 words
The system according to claim 19 , wherein the input device is a keyboard.
Claim 34
Dependent Claim
96 words
A computerized method for determining an anatomical correction for at least one of a maxillary arch and a mandibular arch, comprising the steps of: measuring with a caliper a plurality of tooth sizes; receiving by the processor from the caliper the plurality of tooth sizes; determining by the processor the at least one sum as a function of the plurality of tooth sizes; and determining the anatomical correction for the at least one of the maxillary arch and the mandibular arch as a function of the at least one sum; and displaying the determined anatomical correction.
Claim 35
Dependent Claim
96 words
A computerized method for determining an anatomical correction for at least one of a maxillary arch and a mandibular arch, comprising the steps of: measuring with a caliper a plurality of tooth sizes; receiving by the processor from the caliper the plurality of tooth sizes; determining by the processor the at least one sum as a function of the plurality of tooth sizes; and determining the anatomical correction for the at least one of the maxillary arch and the mandibular arch as a function of the at least one sum; and displaying the determined anatomical correction.
Claim 36
Dependent Claim
33 words
The computerized method according to claim 31 , wherein the at least one sum includes a sum of tooth sizes of a maxillary arch and sum of tooth sizes of a mandibular arch.
Claim 37
Dependent Claim
68 words
The computerized method according to claim 32 , wherein the determining step includes a step of: determining the anatomical correction in the maxillary arch using the following formula: X=L/R−U, wherein, X is the anatomical correction in the maxillary arch, L is the sum of the tooth sizes of the mandibular arch, R is a ratio, and U is the sum of the tooth sizes of the maxillary arch.
Claim 38
Dependent Claim
25 words
The computerized method according to claim 33 , wherein the ratio is one of 0.772 for a six-tooth analysis and 0.913 for a twelve-tooth analysis.
Claim 39
Dependent Claim
72 words
The computerized method according to claim 32 , wherein the determining step includes a step of determining the anatomical correction in the mandibular arch using the following formula: Y =( U×R ) −L, wherein, Y is the anatomical correction in the mandibular arch, U is the sum of the tooth sizes of the maxillary arch, R is a ratio, and L is the sum of the tooth sizes of the mandibular arch.
Claim 40
Dependent Claim
25 words
The computerized method according to claim 35 , wherein the ratio is one of 0.772 for a six-tooth analysis and 0.913 for a twelve-tooth analysis.
Claim 41
Dependent Claim
79 words
A computerized method for determining an anatomical correction for at least one of a maxillary arch and a mandibular arch, comprising the steps of: measuring with a caliper a plurality of tooth sizes; receiving by the processor from the caliper a mesiodistal width of a plurality of teeth; and determining the anatomical correction for the at least one of the maxillary arch and the mandibular arch as a function of the mesiodistal width; and displaying the determined anatomical correction.
Claim 42
Dependent Claim
79 words
A computerized method for determining an anatomical correction for at least one of a maxillary arch and a mandibular arch, comprising the steps of: measuring with a caliper a plurality of tooth sizes; receiving by the processor from the caliper a mesiodistal width of a plurality of teeth; and determining the anatomical correction for the at least one of the maxillary arch and the mandibular arch as a function of the mesiodistal width; and displaying the determined anatomical correction.
References Cited (Backward Citations)
US5447432A
Cited
US5683243A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2005-07-01 | 2005-12-31 | 2006-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-07-01 | 2009-12-31 | 2010-07-02 | $3760.00 | Window Closed / Lapsed |
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