The characteristics of adjacent anatomy of mandibular third molar germs: a CBCT study to assess the risk of extraction

Sun, Rui; Cai, Yu; Zhao, Jianhua

doi:10.1038/s41598-017-14144-y

Cited by 9 publications

(9 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, serious complications such as osteomyelitis of the mandible and development of cysts and tumors have been reported in relation to impacted third molars [1][2][3] . The prevalence rates of mandibular third molar teeth varies from one population to another and several authors have reported prevalence rates ranging from 9.5% to 50%, higher in the western region 4 .…”

Section: Introductionmentioning

confidence: 99%

Clinical efficacy of hyaluronic acid in post-extraction sockets of impacted mandibular third molar

Nariman

Al-Kamali

2021

EDJ

View full text Add to dashboard Cite

Background and Objectives: Pain and swelling are the most common complications that occur after surgical removal of impacted third molar. Aim of this study to evaluate the effectiveness of local hyaluronic acid (HA) administration to surgically remove impacted third molar sockets to evaluate pain and swelling. Materials and Methods:A comparative study included 50 healthy patients were subdivided into two equal sub group, aged 18-35 years with impacted lower third molars type of impaction (class II; position B according to Pell-Gregory classification). The procedure has been performed under local anesthesia. In the study group, 0.8% HA (Gengigel®) was applied in the post-extraction sockets of third molars and in the control group nothing was applied to the extraction sockets of third molars. Pain and swelling were evaluated with a visual analogue scale (VAS). Assessments were made on 1st, 2nd, 3th, 4th, 5 th , 6 th , 7 th days after surgery.Results: Statistically significant difference was detected for the pain values between the two treatment groups in different days of the study (p < 0.05). The swelling scores of the hyaluronic acid group were significantly lesser than those of the control group in day 1 (p = 0.008), day 3 (p = 0.006), and day 4 (p = 0.036). In the other days, the scores were less but the differences were not significant.Conclusion: hyaluronic acid appears to offer a beneficial effect in the management of pain and swelling during the immediate postoperative period following impacted third molar surgery.

show abstract

Section: Introductionmentioning

confidence: 99%

Clinical efficacy of hyaluronic acid in post-extraction sockets of impacted mandibular third molar

Nariman

Al-Kamali

2021

EDJ

View full text Add to dashboard Cite

show abstract

“…Regarding injuries to the IAN and LN, Rui Sun et al investigated the characteristics of the adjacent anatomy of the mandibular third molar germs (MTMG) in their study [47,48]. Patients enrolled in the study, aged between 12 and 17 years, underwent cone-beam computed tomography (CBCT) and, subsequently, the authors analyzed structures and parameters by comparing them with age, sex, degree of tooth development and tooth position [49].…”

Section: Discussionmentioning

confidence: 99%

The Evaluation of Further Complications after the Extraction of the Third Molar Germ: A Pilot Study in Paediatric Dentistry

et al. 2021

View full text Add to dashboard Cite

Some authors suggest germectomy to prevent the impaction of mandibular third molars, which can cause anterior crowding. The aim of the study, conducted with 2 years of follow-up, was to clarify when the extraction of the germ of the third molar is optimal, together with possible post-operative complications. A new surgical approach was performed through the application of a combined suture, which can provide better wound healing. The study was performed on 25 patients with a mean age of 15.44 ± 2.06. Based on orthodontic and surgical indications, 46 germectomies were performed. Follow-ups were conducted after 1 week, 2 weeks, 4 weeks, 1 year and 2 years. All procedures were carried out by the same operator and were standardized. Data analysis was conducted using R-Software. Statistical evaluation used the chi-squared test and the Monte Carlo test. The level of significance was set as 0.05. Results showed that out of 46 germectomies, the prevalence of complications was 4.2% for two patients (8%). Both complications were observed in male patients. In the first case, the patient (at Nolla stage 7) showed delayed onset infections after four weeks; in the second case, the patient (at Nolla stage 6) showed bleeding immediately after surgery and suture. With reference to delayed onset infections, no statistically significant association was found among gender (χ2 = 0.719; p = 0.396), germ development stage (χ2 = 2.595; p = 0.658) or Winter’s classifications (χ2 = 0.046; p = 0.829); similarly, no significant associations were found among bleeding, gender (χ2 = 0.719; p = 0.396), germ development stage (χ2 = 2.595; p = 0.658) or Winter’s classification (χ2 = 0.046; p = 0.829). From our results, it is also possible to state that post-operative complications following germectomy of the mandibular third molar germ in adolescence occur in a significantly reduced percentage of patients, so this oral surgery treatment becomes a reliable surgical technique in adolescence.

show abstract

“…Axial, parasagittal, coronal planes are valued according to Ghaeminia and Sun classifications with states I, IIA, IIB and IIC [ 32 , 33 ].…”

Section: Discussionmentioning

confidence: 99%

The Characteristics of Adjacent Anatomy of Mandibular Third Molar Germs: A CBCT Pilot Study in Patients with Osteogenesis Imperfecta

et al. 2020

View full text Add to dashboard Cite

(1) Objectives: The aim of our study was to investigate the anatomical features of lower third molar and its adjacent anatomical connections in type I Osteogenesis Imperfecta (OI) patients through cone beam computed tomography (cbct). (2) Methods: The study was conducted among 25 patients, 13 patients with type I OI and 12 control patients (individuals with no disorders and no treatment); average age was 15.44 ± 2.06, 23 third molar germs for each group. The germs have been compared to the parameters using the Mann-Whitney test. A chi-square test was also used to investigate the correlation between the status case/control and tooth development stage. (3) Results: Mann-Whitney test showed significant differences between cases and controls: diameter of the tooth germ in toto (U = 93.5; p < 0.001), tooth development stage, (U = 145; p < 0.01), roots length (U = 44.5; p < 0.01), cementoenamel junction diameter (U = 157.5; p < 0.05), size of the pulp chamber (U = 95.5; p < 0.05). Type I OI is not associated with the relationship between the germ of mandibular third molar and alveolar canal on axial plane (χ2 = 4.095; p = 0.129), and parasagittal (χ2 = 4.800; p = 0.091). The association between type I OI and relationship with the germ of mandibular third molar and alveolar canal on the coronal plane has been significant (χ2 = 9.778; p < 0.05) as the perforation of the lingual cortical bone in the region of mandibular third molar tooth germ (χ2 = 11.189; p < 0.01). (4) Conclusions: The results confirm the cbct accuracy in the evaluation of bone density in type I OI patients giving also the opportunity to study the tridimensional anatomy of germs and the adjacent anatomical structures in order to avoid any perioperative complications.

show abstract

The characteristics of adjacent anatomy of mandibular third molar germs: a CBCT study to assess the risk of extraction

Cited by 9 publications

References 17 publications

Clinical efficacy of hyaluronic acid in post-extraction sockets of impacted mandibular third molar

Clinical efficacy of hyaluronic acid in post-extraction sockets of impacted mandibular third molar

The Evaluation of Further Complications after the Extraction of the Third Molar Germ: A Pilot Study in Paediatric Dentistry

The Characteristics of Adjacent Anatomy of Mandibular Third Molar Germs: A CBCT Pilot Study in Patients with Osteogenesis Imperfecta

Contact Info

Product

Resources

About