Pederson scale fails to predict how difficult it will be to extract lower third molars

Diniz‐Freitas, Márcio; Lago-Méndez, Lucía; Gude‐Sampedro, Francisco; Somoza-Martín, Jose Manuel; Gándara-Rey, José Manuel; García‐García, Abel

doi:10.1016/j.bjoms.2005.12.004

Cited by 80 publications

(72 citation statements)

References 13 publications

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“…Signes radiologiques de la proximité de la dent de sagesse mandibulaire avec le canal mandibulaire [8]. Tableau I. Echelle de difficultés de Pederson [7]. à extraire et une section interradiculaire au niveau de la furcation est nécessaire [25,26].…”

Section: Discussionunclassified

Difficultés d’avulsion de la troisième molaire mandibulaire incluse : place de l’orthopantomogramme

Tamba

Tine

Bâ

et al. 2015

Med Buccale Chir Buccale

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Résumé -Objectif : L'objectif de cette étude était de mettre en exergue le rôle de l'orthopantomographie dans la prédiction des difficultés rencontrées lors de l'avulsion des troisièmes molaires incluses en utilisant l'échelle de Pederson. Abstract -Difficulties of impacted lower third molar extraction: the role of the orthopantomogram. Introduction: The orthopantomogram allows for the classification of impacted lower third molars according to depth, the spatial relationship with the ramus and the root relationship/mandibular canal. The aim of this study was to show the role of orthopantomography in the prediction of the difficulties encountered in the extraction of impacted lower third molars using the Pederson scale. Material and Method: This was a cross-sectional descriptive study in the Oral Surgery Service of the Dentistry Department at the Cheikh Anta Diop University of Dakar. The study was done between October 2012 and February 2013. 62 patients were involved. Results: The age group 15-25 was the most represented (57%). The mean age of patients was 26 ± 9 years with extremes of 15 and 73 years. Lower third molars with two roots accounted for 92%. Horizontal angulation (44%) and mesial angulation (35%) were the most represented. Half of the sample exhibited a depth of inclusion of position A (54%). The position I represented 40% of cases. In 33% of cases there was no contact between the roots and the mandibular canal. Conclusion: The orthopantomogram allows grading of the difficulty level for third molar extraction, using the Pederson scale. In our sample, extraction was difficult in 69% of the cases, moderate in 21% and easy in 33%.

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Section: Discussionunclassified

Difficultés d’avulsion de la troisième molaire mandibulaire incluse : place de l’orthopantomogramme

Tamba

Tine

Bâ

et al. 2015

Med Buccale Chir Buccale

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“…The dura on of surgery from incision to last suture was 19,23,24 recorded a er every tooth extrac on.…”

Section: Methodsmentioning

confidence: 99%

Assessment of Pain and Trismus and Determining the Difficulty Level of Tooth Extraction with Modified Parant Scale

Agrawal

Rahman

Naulakha

et al. 2018

Birat J. Health Sci.

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Introduction: Third molar extraction is the most commonly performed procedure by oral and maxillofacial surgeons and most of the extraction leads to minimum pre and post operative difficulties if proper preoperative planning is done and if surgical principles are strictly followed.Objective: This study evaluated whether pre and post operative pain and trismus were related to difficulty of surgery.Methodology: Total number of patients included in this study were 266 (male 135 and female 131), age range from 18 to 34 years. Preoperative diagnosis was made by clinical examination and radiographs. Clinical examination was done to determine pain, swelling and mucosal coverage of tooth whereas OPG and RVG were taken to assess the angulations, level of tooth impaction and bony coverage of tooth. Standardized technique was used for tooth extraction; buccal guttering, adequate elevation, reflection of mucoperiosteal flap, crown sectioning and ostectomy. Evaluation of pain and trismus was done preoperatively, on first and third post operative day. SPSS version 16 was used to analyse the data. Chi square (x²) test and unpaired 't' test were done. Modified Parant Scale was used to evaluate the difficulty of tooth extraction; Group I: forceps extraction; Group II: ostectomy; Group Ill: ostectomy and crown sectioning; Group IV: difficult extraction.Results: When both preoperative and postoperative results were compared after data analysis, pain was significantly reduced and significant inter incisal opening was achieved, in both the groups P > 0.05. The results were statistically not significant.Conclusion: Postoperative pain and trismus was minimum in (Group I) then in (Group II to IV). The incidence of postoperative pain and trismus among all the groups were more or less similar. Hence, no significant difference was found. Birat Journal of Health SciencesVol.2/No.3/Issue 4/Sep- Dec 2017, Page: 282-286

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“…The variables studied were operation time, intraoperative degree of difficulty as reported by Parant's classification [5] (easy I, easy II, difficult III, difficult IV), level of postoperative pain, facial swelling and trismus. The duration of the surgery was determined by the time lapse between incision and completion of suturing.…”

Section: Methodsmentioning

confidence: 99%

Effects of Low-level-laser Therapy versus Corticotherapy on Pain, Trismus and Edema after Surgical Removal of Third Mandibular Molars: A Comparative Study

Raouâa¹,

Sioud²,

Nour³

et al. 2013

Family Med Medical Sci Res

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Pederson scale fails to predict how difficult it will be to extract lower third molars

Cited by 80 publications

References 13 publications

Difficultés d’avulsion de la troisième molaire mandibulaire incluse : place de l’orthopantomogramme

Difficultés d’avulsion de la troisième molaire mandibulaire incluse : place de l’orthopantomogramme

Assessment of Pain and Trismus and Determining the Difficulty Level of Tooth Extraction with Modified Parant Scale

Effects of Low-level-laser Therapy versus Corticotherapy on Pain, Trismus and Edema after Surgical Removal of Third Mandibular Molars: A Comparative Study

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