Patent US3641332A successfully refreshed from Google Patents.
US4189835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dental surveying
Assignee: General Hospital Corp
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Filing: 1977-10-27
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Granted: 1980-02-26
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Expires: 1997-10-27
Abstract
Abstract A dental surveyor and method therefor for use in preoperative evaluation of the rotational and translational movements required for corrective surgery are disclosed. The dental surveyor has a movable stylus or scribe that can be selectively positioned with respect to articulated mandibular and/or maxillary dental models. When the models are articulated in the two positions representing the malocclusion and the proposed corrective occlusion, the movable stylus provides a means for marking and thereby visually identifying the relative locations of a point of anatomical interest in the two positions.
Inventors
- 👤 Edward B. Seldin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:24
CPC Classifications
A; A61; A61C; A61C11/00; A61C11/02; A61C11/008
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
161 words
A method for preoperative evaluation comprising the steps of: 1. preparing maxillary and mandibular dental models, said models each having a base portion of a given configuration; 2. mounting a articulator base on a dental articulator, said articulator base having at least one positional keying means; 3. placing said models on the articulator in a first position that presents the patient's malocclusion and then temporarily securing the models in said first position; 4. casting a first template means having (i) a complementary replica of the base portion of one of said dental models when the model is in such first position and (ii) at least one positional keying means that mates with said at least one positional keying means of said articulator base; 5. detaching said dental models from said first position; 6. placing said dental models on the articulator in a second position that presents the patient's proposed corrective position and then temporarily securing the models in said second position;
Claim 2
Independent Claim
161 words
A method for preoperative evaluation comprising the steps of: 1. preparing maxillary and mandibular dental models, said models each having a base portion of a given configuration; 2. mounting a articulator base on a dental articulator, said articulator base having at least one positional keying means; 3. placing said models on the articulator in a first position that presents the patient's malocclusion and then temporarily securing the models in said first position; 4. casting a first template means having (i) a complementary replica of the base portion of one of said dental models when the model is in such first position and (ii) at least one positional keying means that mates with said at least one positional keying means of said articulator base; 5. detaching said dental models from said first position; 6. placing said dental models on the articulator in a second position that presents the patient's proposed corrective position and then temporarily securing the models in said second position;
Claim 3
Dependent Claim
156 words
casting a second template means having (i) a complementary replica of the base portion of said one of said dental models when the model is in said second position and (ii) at least one positional keying means that mates with said at least one positional keying means on said articulator base; 8. unsecuring said dental models from said second position; 9. placing the base of one of said dental models in the complementary replica thereof in one of said template means and engaging the positional keying means thereof with the positional keying means of articulator base; 10. mounting a stylus assembly with respect to one of said dental models, said stylus assembly including a movable stylus; 11. marking at least one of said dental models with the stylus; 12. substituting the other of said template means for said one of said template means without moving the stylus assembly relative to said one of said dental models;
Claim 4
Dependent Claim
156 words
casting a second template means having (i) a complementary replica of the base portion of said one of said dental models when the model is in said second position and (ii) at least one positional keying means that mates with said at least one positional keying means on said articulator base; 8. unsecuring said dental models from said second position; 9. placing the base of one of said dental models in the complementary replica thereof in one of said template means and engaging the positional keying means thereof with the positional keying means of articulator base; 10. mounting a stylus assembly with respect to one of said dental models, said stylus assembly including a movable stylus; 11. marking at least one of said dental models with the stylus; 12. substituting the other of said template means for said one of said template means without moving the stylus assembly relative to said one of said dental models;
Claim 5
Dependent Claim
40 words
marking again said at least one of said dental models with the stylus; and, 14. determining from the two stylus marks the translational movements required to move said one of said models from the first position to the second position.
Claim 6
Dependent Claim
40 words
marking again said at least one of said dental models with the stylus; and, 14. determining from the two stylus marks the translational movements required to move said one of said models from the first position to the second position.
Claim 7
Dependent Claim
25 words
The method of claim 1 further comprising the step of drawing a line between said two stylus marks and measuring the length of the line.
Claim 8
Dependent Claim
39 words
The method of claim 1 further comprising the step of marking both of said dental models with the stylus when said one of said models is in the first position and again when it is in the second position.
Claim 9
Dependent Claim
61 words
The method of claim 1, further comprising the steps of marking said at least one of said dental models with another stylus mark when the dental model is in each of said first and second positions and determining from the resulting two pairs of stylus marks, the rotational movement of the dental model from the first position to the second position.
References Cited (Backward Citations)
US1753965A
Cited
US2618068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-25 | 1983-08-27 | 1984-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-25 | 1987-08-27 | 1988-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-25 | 1991-08-27 | 1992-02-26 | $7700.00 | Window Closed / Lapsed |