The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
A Randomized Four‐Year Study of Periodontal Therapy
Abstract
T he purpose of this study was to compare the long term effectiveness of scaling and root planing alone to scaling and root planing followed by periodontal surgery. Seventeen subjects with moderate to advanced periodontitis received thorough scaling and root planing as well as oral hygiene instruction. A modified Widman flap was then randomly performed for one‐half of each subject's dentition. Recall prophylaxis and oral hygiene reinforcement were administered for 4 years after completion of therapy. Shallow crevices (1–3 mm) subjected to either procedure tended to increase slightly in depth and exhibit a slight loss of attachment when compared to pretreatment measurements. Moderately deep pockets (4–6 mm) treated by either procedure were reduced and demonstrated a sustained gain or maintenance of attachment level. Pockets initially ≥7 mm exhibited the greatest reduction in depth and attachment gain. Gingivitis was reduced following either procedure for moderate and deep pockets. No difference in supragingival plaque retention was noted and both procedures reduced calculus. The results indicate that both procedures were effective in treating moderate to advanced periodontitis. However, the additional flap procedure tended to result in greater pocket reduction and attachment gain for deeper pockets.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
A Long‐Term Survey of Tooth Loss in 600 Treated Periodontal Patients
Hirschfeld, L., & Wasserman, B. (1978) · Journal of Periodontology · doi:10.1902/jop.1978.49.5.225 · Cited by 993
Effect of controlled oral hygiene procedures on caries and periodontal disease in adults
Axelsson, P., & Lindhe, J. (1978) · Journal of Clinical Periodontology · doi:10.1111/j.1600-051x.1978.tb01914.x · Cited by 624
Lindhe, J., & Nyman, S. (1975) · Journal of Clinical Periodontology · doi:10.1111/j.1600-051x.1975.tb01727.x · Cited by 517
Löe, H., Anerud, A., Boysen, H., & Smith, M. (1978) · Journal of Periodontology · doi:10.1902/jop.1978.49.12.607 · Cited by 471
The effect of systematic plaque control on bone regeneration in infrabony pockets
Rosling, B., Nyman, S., & Lindhe, J. (1976) · Journal of Clinical Periodontology · doi:10.1111/j.1600-051x.1976.tb01849.x · Cited by 405
Microscopic evaluation of clinical measurements of connective tissue attachment levels
Armitage, G. C., Svanberc, G. K., & Löe, H. (1977) · Journal of Clinical Periodontology · doi:10.1111/j.1600-051x.1977.tb02271.x · Cited by 404
Results of Periodontal Treatment Related to Pocket Depth and Attachment Level. Eight Years
Knowles, J. W., Burgett, F. G., Nissle, R. R., Shick, R. A., Morrison, E. C., & Ramfjord, S. P. (1979) · Journal of Periodontology · doi:10.1902/jop.1979.50.5.225 · Cited by 394
Errors in the clinical assessment of periodontal destruction
Glavind, L., & Löe, H. (1967) · Journal of Periodontal Research · doi:10.1111/j.1600-0765.1967.tb01887.x · Cited by 394
Suomi, J. D., Greene, J. C., Vermillion, J. R., Doyle, J., Change, J. J., & Leatherwood, E. C. (1971) · Journal of Periodontology · doi:10.1902/jop.1971.42.3.152 · Cited by 386
Slots, J., Mashimo, P., Levine, M. J., & Genco, R. J. (1979) · Journal of Periodontology · doi:10.1902/jop.1979.50.10.495 · Cited by 343
Cited by
Effect of nonsurgical periodontal therapy: I. Moderately advanced periodontitis
Badersten, A., Nilvéus, R., & Egelberg, J. (1981) · Journal of Clinical Periodontology · doi:10.1111/j.1600-051x.1981.tb02024.x · Cited by 869
Non‐Surgical Pocket Therapy: Mechanical
Cobb, C. M. (1996) · Annals of Periodontology · doi:10.1902/annals.1996.1.1.443 · Cited by 593
Cobb, C. M. (2002) · Journal of Clinical Periodontology · doi:10.1034/j.1600-051x.29.s2.4.x · Cited by 566
Williams, R. C. (1990) · New England Journal of Medicine · doi:10.1056/nejm199002083220606 · Cited by 482
Heitz‐Mayfield, L. J. A., Trombelli, L., Heitz, F., Needleman, I., & Moles, D. (2002) · Journal of Clinical Periodontology · doi:10.1034/j.1600-051x.29.s3.5.x · Cited by 455
Metadata
- Authors
- Pihlstrom, B. L., Ortiz‐Campos, C., & McHugh, R. B.
- Venue
- Journal of Periodontology
- Publisher
- Wiley
- Published
- 1981-05
- Volume
- 52
- Issue
- 5
- Pages
- 227-242
- ISSN
- 0022-3492 (ISSN-L)
- 1943-3670
- OpenAlex
- W1989169030
- Cited by
- 260
- References
- 36
- FWCI
- 20.64
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: A Randomized Four‐Year Study of Periodontal Therapy. https://app.cochat.ai/papers/10.1902/jop.1981.52.5.227
- The paper
- Pihlstrom, B. L., Ortiz‐Campos, C., & McHugh, R. B. (1981). A Randomized Four‐Year Study of Periodontal Therapy. Journal of Periodontology. https://doi.org/10.1902/jop.1981.52.5.227
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
