Survival of molar teeth after resective periodontal therapy - A retrospective study

Aim To study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots, and without which tooth extraction would be inevitable. Material and Methods Clinical records of 149 subjects who had undergone resective th...

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Published inJournal of clinical periodontology Vol. 39; no. 9; pp. 850 - 860
Main Authors Lee, Ka Leung, Corbet, Esmonde F., Leung, W. Keung
Format Journal Article
LanguageEnglish
Published Oxford Blackwell Publishing Ltd 01.09.2012
Blackwell
Subjects
Adult
Age
Age Factors
Aged
Alveolar Bone Loss - complications
Biological and medical sciences
Bone loss
Clinical outcomes
Demography
Dental roots
Dental Scaling - statistics & numerical data
Dentistry
Facial bones, jaws, teeth, parodontium: diseases, semeiology
Female
Follow-Up Studies
furcation defects
Furcation Defects - complications
Furcation Defects - surgery
Humans
Life span
Male
Medical sciences
Middle Aged
Mobility
Molar - surgery
Molars
Motivation
Non tumoral diseases
Otorhinolaryngology. Stomatology
periodontal splints
periodontitis
proportional hazards models
Regression analysis
Retreatment - statistics & numerical data
Retrospective Studies
Survival
Survival Analysis
Teeth
Tooth Extraction - statistics & numerical data
tooth loss
Tooth Loss - etiology
Tooth Loss - prevention & control
Tooth Mobility - complications
Tooth Mobility - prevention & control
Tooth Root - surgery
Treatment Failure
treatment outcome
Prognosis
Stomatology
furcation defects
Molar tooth
Dentistry
Survival
tooth loss
treatment outcome
Periodontal disease
Treatment
Periodontitis
Bucco-dental health
molars
periodontal splints
Furcation defect
proportional hazards models
Splint
Online AccessGet full text
ISSN0303-6979
1600-051X
1600-051X
DOI10.1111/j.1600-051X.2012.01918.x

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Abstract Aim To study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots, and without which tooth extraction would be inevitable. Material and Methods Clinical records of 149 subjects who had undergone resective therapy were retrieved. Demography and dental history were recorded, and a recall examination was undertaken. Cox regression models were performed. Results Of the 149 resective therapies, 132 (88.6%) were performed for periodontal reasons. Eighty‐nine (59.7%) teeth subjected to resective therapies had been extracted by the time of recall (mean 10 years post‐resection). The median survival period was 74 months. Factors significantly associated with shorter survival duration of teeth subjected to resective therapy were: age at resective therapy; pre‐operative radiographic bone height of the remaining root(s) <50%; pre‐treatment mobility II or above and not being splinted to neighbouring teeth nor incorporated as a bridge abutment. Conclusion There was increased risk of tooth loss with increasing age at resection, grade II mobility or above, and reduced pre‐operative radiographic bone heights around roots to remain. Splinting of a resected tooth to neighbouring teeth appeared to confer a protective effect towards its survival.
AbstractList Aim To study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots, and without which tooth extraction would be inevitable. Material and Methods Clinical records of 149 subjects who had undergone resective therapy were retrieved. Demography and dental history were recorded, and a recall examination was undertaken. Cox regression models were performed. Results Of the 149 resective therapies, 132 (88.6%) were performed for periodontal reasons. Eighty-nine (59.7%) teeth subjected to resective therapies had been extracted by the time of recall (mean 10 years post-resection). The median survival period was 74 months. Factors significantly associated with shorter survival duration of teeth subjected to resective therapy were: age at resective therapy; pre-operative radiographic bone height of the remaining root(s) <50%; pre-treatment mobility II or above and not being splinted to neighbouring teeth nor incorporated as a bridge abutment. Conclusion There was increased risk of tooth loss with increasing age at resection, grade II mobility or above, and reduced pre-operative radiographic bone heights around roots to remain. Splinting of a resected tooth to neighbouring teeth appeared to confer a protective effect towards its survival. [PUBLICATION ABSTRACT]
To study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots, and without which tooth extraction would be inevitable. Clinical records of 149 subjects who had undergone resective therapy were retrieved. Demography and dental history were recorded, and a recall examination was undertaken. Cox regression models were performed. Of the 149 resective therapies, 132 (88.6%) were performed for periodontal reasons. Eighty-nine (59.7%) teeth subjected to resective therapies had been extracted by the time of recall (mean 10 years post-resection). The median survival period was 74 months. Factors significantly associated with shorter survival duration of teeth subjected to resective therapy were: age at resective therapy; pre-operative radiographic bone height of the remaining root(s) <50%; pre-treatment mobility II or above and not being splinted to neighbouring teeth nor incorporated as a bridge abutment. There was increased risk of tooth loss with increasing age at resection, grade II mobility or above, and reduced pre-operative radiographic bone heights around roots to remain. Splinting of a resected tooth to neighbouring teeth appeared to confer a protective effect towards its survival.
Aim To study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots, and without which tooth extraction would be inevitable. Material and Methods Clinical records of 149 subjects who had undergone resective therapy were retrieved. Demography and dental history were recorded, and a recall examination was undertaken. Cox regression models were performed. Results Of the 149 resective therapies, 132 (88.6%) were performed for periodontal reasons. Eighty‐nine (59.7%) teeth subjected to resective therapies had been extracted by the time of recall (mean 10 years post‐resection). The median survival period was 74 months. Factors significantly associated with shorter survival duration of teeth subjected to resective therapy were: age at resective therapy; pre‐operative radiographic bone height of the remaining root(s) <50%; pre‐treatment mobility II or above and not being splinted to neighbouring teeth nor incorporated as a bridge abutment. Conclusion There was increased risk of tooth loss with increasing age at resection, grade II mobility or above, and reduced pre‐operative radiographic bone heights around roots to remain. Splinting of a resected tooth to neighbouring teeth appeared to confer a protective effect towards its survival.
To study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots, and without which tooth extraction would be inevitable.AIMTo study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots, and without which tooth extraction would be inevitable.Clinical records of 149 subjects who had undergone resective therapy were retrieved. Demography and dental history were recorded, and a recall examination was undertaken. Cox regression models were performed.MATERIAL AND METHODSClinical records of 149 subjects who had undergone resective therapy were retrieved. Demography and dental history were recorded, and a recall examination was undertaken. Cox regression models were performed.Of the 149 resective therapies, 132 (88.6%) were performed for periodontal reasons. Eighty-nine (59.7%) teeth subjected to resective therapies had been extracted by the time of recall (mean 10 years post-resection). The median survival period was 74 months. Factors significantly associated with shorter survival duration of teeth subjected to resective therapy were: age at resective therapy; pre-operative radiographic bone height of the remaining root(s) <50%; pre-treatment mobility II or above and not being splinted to neighbouring teeth nor incorporated as a bridge abutment.RESULTSOf the 149 resective therapies, 132 (88.6%) were performed for periodontal reasons. Eighty-nine (59.7%) teeth subjected to resective therapies had been extracted by the time of recall (mean 10 years post-resection). The median survival period was 74 months. Factors significantly associated with shorter survival duration of teeth subjected to resective therapy were: age at resective therapy; pre-operative radiographic bone height of the remaining root(s) <50%; pre-treatment mobility II or above and not being splinted to neighbouring teeth nor incorporated as a bridge abutment.There was increased risk of tooth loss with increasing age at resection, grade II mobility or above, and reduced pre-operative radiographic bone heights around roots to remain. Splinting of a resected tooth to neighbouring teeth appeared to confer a protective effect towards its survival.CONCLUSIONThere was increased risk of tooth loss with increasing age at resection, grade II mobility or above, and reduced pre-operative radiographic bone heights around roots to remain. Splinting of a resected tooth to neighbouring teeth appeared to confer a protective effect towards its survival.
To study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots, and without which tooth extraction would be inevitable. Clinical records of 149 subjects who had undergone resective therapy were retrieved. Demography and dental history were recorded, and a recall examination was undertaken. Cox regression models were performed. Of the 149 resective therapies, 132 (88.6%) were performed for periodontal reasons. Eighty-nine (59.7%) teeth subjected to resective therapies had been extracted by the time of recall (mean 10 years post-resection). The median survival period was 74 months. Factors significantly associated with shorter survival duration of teeth subjected to resective therapy were: age at resective therapy; pre-operative radiographic bone height of the remaining root(s) <50%; pre-treatment mobility II or above and not being splinted to neighbouring teeth nor incorporated as a bridge abutment. There was increased risk of tooth loss with increasing age at resection, grade II mobility or above, and reduced pre-operative radiographic bone heights around roots to remain. Splinting of a resected tooth to neighbouring teeth appeared to confer a protective effect towards its survival.
Author Leung, W. Keung
Corbet, Esmonde F.
Lee, Ka Leung
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Issue 9
Keywords Prognosis
Stomatology
furcation defects
Molar tooth
Dentistry
Survival
tooth loss
treatment outcome
Periodontal disease
Treatment
Periodontitis
Bucco-dental health
molars
periodontal splints
Furcation defect
proportional hazards models
Splint
Language English
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CC BY 4.0
2012 John Wiley & Sons A/S.
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Research Grants Council - No. HKU 772110M
Conflict of interest and source of funding statement
The authors declare that there are no conflicts of interest in this study. The work described in this study was partially supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (772110M).
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Pilgram, T. K., Hildebolt, C. F., Yokoyama-Crothers, N., Dotson, M., Cohen, S. C., Hauser, J. F. & Kardaris, E. (2000) Relationships between radiographic alveolar bone height and probing attachment level: data from healthy post-menopausal women. Journal of Clinical Periodontology 27, 341-346.
Walter, C., Weiger, R. & Zitzmann, N. U. (2011) Periodontal surgery in furcation-involved maxillary molars revisited-an introduction of guidelines for comprehensive treatment. Clinical Oral Investigations 15, 9-20.
Zitzmann, N. U., Scherrer, S. S., Weiger, R., Lang, N. P. & Walter, C. (2011) Preferences of dental care providers in maintaining compromised teeth in relation to their professional status: implants instead of periodontally involved maxillary molars? Clinical Oral Implants Research 22, 143-150.
Rosling, B., Nyman, S. & Lindhe, J. (1976) The effect of systematic plaque control on bone regeneration in infrabony pockets. Journal of Clinical Periodontology 3, 38-53.
Ekuni, D., Yamamoto, T. & Takeuchi, N. (2009) Retrospective study of teeth with a poor prognosis following non-surgical periodontal treatment. Journal of Clinical Periodontology 36, 343-348.
Hou, G. L., Hung, C. C., Tsai, C. C. & Weisgold, A. S. (2005) Topographic study of root trunk type on Chinese molars with Class III furcation involvements: molar type and furcation site. International Journal of Periodontics and Restorative Dentistry 25, 173-179.
Razak, I. A., Jaafar, N., Jalalludin, R. L. & Esa, R. (1990) Patient's preference for exodontia versus preservation in Malaysia. Community Dentistry and Oral Epidemiology 18, 131-132.
Bühler, H. (1988) Evaluation of root-resected teeth. Results after 10 years. Journal of Periodontology 59, 805-810.
Park, S. Y., Shin, S. Y., Yang, S. M. & Kye, S. B. (2009) Factors influencing the outcome of root-resection therapy in molars: a 10-year retrospective study. Journal of Periodontology 80, 32-40.
Fleszar, T. J., Knowles, J. W., Morrison, E. C., Burgett, F. G., Nissle, R. R. & Ramfjord, S. P. (1980) Tooth mobility and periodontal therapy. Journal of Clinical Periodontology 7, 495-505.
Käyser, A. F. (1981) Shortened dental arches and oral function. Journal of Oral Rehabilitation 8, 457-462.
Tu, M.-G., Tsai, C.-C., Jou, M.-J., Chen, W.-L., Chang, Y.-F., Chen, S.-Y. & Cheng, H.-W. (2007) Prevalence of three-rooted mandibular first molars among Taiwanese individuals. Journal of Endodontics 33, 1163-1166.
Nordland, P., Garrett, S., Kiger, R., Vanooteghem, R., Hutchens, L. H. & Egelberg, J. (1987) The effect of plaque control and root debridement in molar teeth. Journal of Clinical Periodontology 14, 231-236.
Dannewitz, B., Krieger, J. K., Husing, J. & Eickholz, P. (2006) Loss of molars in periodontally treated patients: a retrospective analysis five years or more after active periodontal treatment. Journal of Clinical Periodontology 33, 53-61.
Hou, G. L. & Tsai, C. C. (1987) Relationship between periodontal furcation involvement and molar cervical enamel projections. Journal of Periodontology 58, 715-721.
Zee, K. Y., Chiu, M. L., Homlgren, C. J., Walker, R. T. & Corbet, E. F. (1991) Cervical enamel projections in Chinese first permanent molars. Australian Dental Journal 36, 356-360.
Hirschfeld, L. & Wasserman, B. (1978) A long-term survey of tooth loss in 600 treated periodontal patients. Journal of Periodontology 49, 225-237.
Bergenholtz, A. (1972) Radectomy of multi-rooted teeth. Journal of American Dental Association 85, 870-875.
Walter, C., Kaner, D., Berndt, D. C., Weiger, R. & Zitzmann, N. U. (2009) Three-dimensional imaging as a ore-operative tool in decision making for furcation surgery. Journal of Clinical Periodontology 36, 250-257.
Hou, G. L., Chen, S. F., Wu, Y. M. & Tsai, C. C. (1994) The topography of the furcation entrance in Chinese molars. Furcation entrance dimensions. Journal of Clinical Periodontology 21, 451-456.
Walker, R. T. & Quackenbush, L. E. (1985) Three-rooted lower first permanent molars in Hong Kong Chinese. British Dental Journal 159, 298-299.
Nyman, S. R., Lindhe, J. & Rosling, B. (1977) Periodontal surgery in plaque-infected dentitions. Journal of Clinical Periodontology 4, 240-249.
Wong, H. M., McGrath, C. P. J., Lo, E. C. M. & King, N. M. (2006) Association between developmental defects of enamel and different concentrations of fluoride in the public water supply. Caries Research 40, 481-486.
McFall, W. T. Jr. (1982) Tooth loss in 100 treated patients with periodontal disease. A long-term study. Journal of Periodontology 53, 539-549.
Bower, R.C. (1979) Furcation morphology relative to periodontal treatment. Furcation entrance architecture. Journal of Periodontology 50, 23-27.
Svärdström, G. & Wennström, J. L. (2000) Periodontal treatment decisions for molars: an analysis of influencing factors and long-term outcome. Journal of Periodontology 71, 579-585.
Leung, W. K., Ng, D. K., Jin, L. & Corbet, E. F. (2006) Tooth loss in treated periodontitis patients responsible for their supportive care arrangements. Journal of Clinical Periodontology 33, 265-275.
Aquilino, S. A. & Caplan, D. J. (2002) Relationship between crown placement and the survival of endodontically treated teeth. Journal of Prosthetic Dentistry 87, 256-263.
Checchi, L., Montevecchi, M., Gatto, M. R. A. & Trombelli, L. (2002) Retrospective study of tooth loss in 92 treated periodontal patients. Journal of Clinical Periodontology 29, 651-656.
Klavan, B. (1975) Clinical observations following root amputation. Journal of Periodontology 46, 1-5.
Valderhaug, J., Jokstad, A., Ambjornsen, E. & Norheim, P. W. (1997) Assessment of the periapical and clinical status of crowned teeth over 25 years. Journal of Dentistry 25, 97-105.
Loos, B., Nylund, K., Claffey, N. & Egelberg, J. (1989) Clinical effects of root debridement in molar and non-molar teeth. A 2-year follow-up. Journal of Clinical Periodontology 16, 498-504.
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Huynh-Ba, G., Kuonen, P., Hofer, D., Schmid, J., Lang, N. P. & Salvi, G. E. (2009) The effect of periodontal therapy on the survival rate and incidence of complications of multirooted teeth with furcation involvement after an observation period of at least 5 years: systematic review. Journal of Clinical Periodontology 36, 164-176.
Langer, B. (1996) Root resection revisited. International Journal of Periodontics & Restorative Dentistry 16, 200-201.
Al-Shammari, K. F., Kazor, C. E. & Wang, H. L. (2001) Molar root anatomy and management of furcation defects. Journal of Clinical Periodontology 28, 730-740.
Chiu, B. M., Zee, K. Y., Corbet, E. F. & Holmgren, C. J. (1991) Periodontal implications of furcation entrance dimensions in Chinese first permanent molars. Journal of Periodontology 62, 308-311.
Harrell, F. E. Jr., Lee, K. L. & Mark, D.B. (1996) Multivariable prognostic models: issues in developing models, evaluating assumptions and adequacy, and measuring and reducing errors. Statistics in Medicine 15, 361-387.
Farrar, J. N. (1884) Radical and heroic treatment of alveolar abscess by amputation of roots of teeth. Dental Cosmo
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Snippet Aim To study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots,...
To study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots, and...
Aim To study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots,...
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StartPage 850
SubjectTerms Adult
Age
Age Factors
Aged
Alveolar Bone Loss - complications
Biological and medical sciences
Bone loss
Clinical outcomes
Demography
Dental roots
Dental Scaling - statistics & numerical data
Dentistry
Facial bones, jaws, teeth, parodontium: diseases, semeiology
Female
Follow-Up Studies
furcation defects
Furcation Defects - complications
Furcation Defects - surgery
Humans
Life span
Male
Medical sciences
Middle Aged
Mobility
Molar - surgery
Molars
Motivation
Non tumoral diseases
Otorhinolaryngology. Stomatology
periodontal splints
periodontitis
proportional hazards models
Regression analysis
Retreatment - statistics & numerical data
Retrospective Studies
Survival
Survival Analysis
Teeth
Tooth Extraction - statistics & numerical data
tooth loss
Tooth Loss - etiology
Tooth Loss - prevention & control
Tooth Mobility - complications
Tooth Mobility - prevention & control
Tooth Root - surgery
Treatment Failure
treatment outcome
Title Survival of molar teeth after resective periodontal therapy - A retrospective study
URI https://api.istex.fr/ark:/67375/WNG-TJHDP2R4-B/fulltext.pdf
https://onlinelibrary.wiley.com/doi/abs/10.1111%2Fj.1600-051X.2012.01918.x
https://www.ncbi.nlm.nih.gov/pubmed/22780229
https://www.proquest.com/docview/1433873552
https://www.proquest.com/docview/1032610303
https://www.proquest.com/docview/1093464941
Volume 39
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