“…There has been a lack of consensus on the periodontal status of mandibular M2 adjacent to extracted third molars . Many authors call for studies under strict standardized conditions .…”
Section: Discussionmentioning
confidence: 99%
“…Because some reports highlighted the possibility that age could influence socket healing, age was studied as a predictor of healing not only in a linear way (see above) but also was used as a variable to divide the studied sample in two . The study sample was divided into two age groups: younger than 25, and older than 25, following Kugelberg et al .…”
Section: Methodsmentioning
confidence: 99%
“…6,8 Nevertheless, current scientific literature calls for further clinical standardized research to identify potential periodontal factors that may influence healing outcomes. 26 The aim of this study is to assess the clinical periodontal impact of mandibular M3 surgical removal by comparing the periodontal status of adjacent M2 before and after extraction. Clinical changes, between baseline and 6 months postsurgery, were assessed for PPD, clinical attachment levels (CAL), bleeding on probing (BOP), plaque index (PI), and gingival index (GI).…”
Background
The periodontal health distal of second molars (M2) is often compromised because of third molar (M3) impactions. The aim of this study was to evaluate healing and periodontal status of mandibular M2 after M3 surgical extraction.
Methods
Eighty‐nine consecutive patients with 89 asymptomatic M3 who needed surgical extraction of one fully‐ or semi‐impacted M3 entered this study. Clinical measurements, probing pocket depth (PPD), clinical attachment level (CAL), plaque index (PI), gingival index (GI), and bleeding on probing (BOP), were compared for M2 at baseline (T0) and 6‐months (T1) postsurgical extraction. Multiple logistic regression analysis assessed different risk factors for postoperative changes of periodontal parameters.
Results
Six‐month M2 PPD improved at disto‐vestibular (T0‐5.2/T1‐3.0 mm) and disto‐lingual (T0‐5.4/T1‐3.2 mm) sites. The average attachment gains at T1 were 1.9 and 2 mm, respectively (P < 0.05). BOP, PI, and GI showed significant clinical improvements after extractions. Fifty‐three out of 72 (73.6%) M2 presenting a PPD ≥ 4mm at baseline healed at 6 months recall without periodontal pockets. Older age (mean 55 years, SD 16.7; range 26 to 81) and mean distal PPD at baseline of 7 mm was more likely to be associated with PPD ≥ 4 mm 6 months postextraction (P < 0.05). Past history of periodontitis patients were 41 times more likely to present PPD ≥ 4 mm after healing (OR = 41.4; 95% CI = 10.9 to 156.5, P < 0.05).
Conclusion
Mandibular M3 extractions seem to improve overall periodontal health distal of M2. History of periodontitis, preoperative deep pockets and older age are independent risk factors for poorer healing and residual pockets after M3 surgical extraction.
“…There has been a lack of consensus on the periodontal status of mandibular M2 adjacent to extracted third molars . Many authors call for studies under strict standardized conditions .…”
Section: Discussionmentioning
confidence: 99%
“…Because some reports highlighted the possibility that age could influence socket healing, age was studied as a predictor of healing not only in a linear way (see above) but also was used as a variable to divide the studied sample in two . The study sample was divided into two age groups: younger than 25, and older than 25, following Kugelberg et al .…”
Section: Methodsmentioning
confidence: 99%
“…6,8 Nevertheless, current scientific literature calls for further clinical standardized research to identify potential periodontal factors that may influence healing outcomes. 26 The aim of this study is to assess the clinical periodontal impact of mandibular M3 surgical removal by comparing the periodontal status of adjacent M2 before and after extraction. Clinical changes, between baseline and 6 months postsurgery, were assessed for PPD, clinical attachment levels (CAL), bleeding on probing (BOP), plaque index (PI), and gingival index (GI).…”
Background
The periodontal health distal of second molars (M2) is often compromised because of third molar (M3) impactions. The aim of this study was to evaluate healing and periodontal status of mandibular M2 after M3 surgical extraction.
Methods
Eighty‐nine consecutive patients with 89 asymptomatic M3 who needed surgical extraction of one fully‐ or semi‐impacted M3 entered this study. Clinical measurements, probing pocket depth (PPD), clinical attachment level (CAL), plaque index (PI), gingival index (GI), and bleeding on probing (BOP), were compared for M2 at baseline (T0) and 6‐months (T1) postsurgical extraction. Multiple logistic regression analysis assessed different risk factors for postoperative changes of periodontal parameters.
Results
Six‐month M2 PPD improved at disto‐vestibular (T0‐5.2/T1‐3.0 mm) and disto‐lingual (T0‐5.4/T1‐3.2 mm) sites. The average attachment gains at T1 were 1.9 and 2 mm, respectively (P < 0.05). BOP, PI, and GI showed significant clinical improvements after extractions. Fifty‐three out of 72 (73.6%) M2 presenting a PPD ≥ 4mm at baseline healed at 6 months recall without periodontal pockets. Older age (mean 55 years, SD 16.7; range 26 to 81) and mean distal PPD at baseline of 7 mm was more likely to be associated with PPD ≥ 4 mm 6 months postextraction (P < 0.05). Past history of periodontitis patients were 41 times more likely to present PPD ≥ 4 mm after healing (OR = 41.4; 95% CI = 10.9 to 156.5, P < 0.05).
Conclusion
Mandibular M3 extractions seem to improve overall periodontal health distal of M2. History of periodontitis, preoperative deep pockets and older age are independent risk factors for poorer healing and residual pockets after M3 surgical extraction.
“…Nevertheless, removal of M3s, whether I‐M3 or non‐impacted (N‐M3), improves periodontal status of A‐M2s, leading to less frequent local inflammatory periodontal disease and positively affecting overall periodontal health 17 , 18 . These observed therapeutic benefits, irrespective of large individual variations, have led to debate regarding advantages and disadvantages of prophylactic extraction of asymptomatic M3s, including N‐M3s 19 . Although influence of asymptomatic N‐M3s on A‐M2s remains largely unknown, M2s adjacent to N‐M3s also present with various periodontal problems, especially gingival inflammation, increased periodontal probing depth (PD), and alveolar bone resorption (see http://www.joponline.org/doi/suppl/10.1902/jop.2016.160453/suppl_file/160453_supfig1.html in online Journal of Periodontology ) 4 .…”
mentioning
confidence: 99%
“…Currently, there is no substantial evidence that occurrence of A‐M2 pathologies is associated with N‐M3s 4 . Interestingly, recent findings suggest that clinical status of A‐M2s can improve after early removal of erupted M3s, especially in the presence of certain inflammatory cofactors 19 …”
Presence of N-M3s, even if they are asymptomatic, represents an important risk factor for periodontal health of A-M2s. This finding should be considered during clinical decision making regarding retention or extraction of N-M3s, especially when these teeth are non-functional or when their removal will not affect overall occlusal function.
In this study, we used rat animal model to compare the efficiency of indocyanine green (ICG)-assisted dental near-infrared fluorescence imaging with X-ray imaging, and we optimized the imaging window for both unerupted and erupted molars. The results show that the morphology of the dental structures was observed clearly from ICG-assisted dental images (especially through the endoscope). A better image contrast was easily acquired at the short imaging windows (<10 minutes) for unerupted and erupted molars. For unerupted molars, there is another optimized imaging window (48-96 hours) with a prominent glowin-the-dark effect: only the molars remain bright. This study also revealed that the laser ablation of dental follicles can disrupt the molar development, and our method is able to efficiently detect laser-treated molars and acquire the precise morphology. Thus, ICG-assisted dental imaging has the potential to be a safer and more efficient imaging modality for the real-time diagnosis of dental diseases.fluorescence dental imaging, indocyanine green, laser treatment, near-infrared, optimal imaging window
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