Non-Cochrane · aetiology · PM42682733
Role of third molars in mandibular fractures: a systematic umbrella review with updated meta-analysis.
Omer Shahen Hiwa, Mahmood Mohammed Khalid, Abdulghafor Mohammed Aso, et al. · Frontiers in oral health · 2026 · PubMed · doi:10.3389/froh.2026.1865229
Findings
Population Patients with mandibular fractures
94 findings
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Gaddipati et al. 2014 | RR 2.04 [1.67, 2.50] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Study quality (RR): High quality | RR 2.21 [1.16, 4.20] GRADE not reported 9 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Study quality (RR): Low quality | RR 1.57 [0.02, 161.14] GRADE not reported 2 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Trim and fill (OR) | OR 0.47 [0.28, 0.78] GRADE not reported 28 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Sample size (RR): Small (N < 300) | RR 2.48 [1.38, 4.46] GRADE not reported 10 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Fracture cause (OR): RTA | OR 0.18 [0.05, 0.68] GRADE not reported 7 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Patil 2012 | RR 2.29 [1.72, 3.05] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Subhashraj 2009 | RR 2.28 [1.73, 3.02] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Leave one out: Gaddipati et al. 2014 | OR 0.31 [0.21, 0.45] GRADE not reported 19 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Leave one out: Soós et al. 2020 | OR 0.27 [0.17, 0.42] GRADE not reported 19 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Included meta-analysis: Machete 2016 | RR 1.44 [1.31, 1.57] GRADE not reported 19 studies · 9888 participants |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Mah et al. 2015 | RR 2.08 [1.60, 2.71] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Time (OR): 2011–2017 | OR 0.22 [0.07, 0.68] GRADE not reported 6 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Fracture cause (OR): Violence | OR 0.38 [0.27, 0.53] GRADE not reported 9 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Publication year 2011–2016 Unresolved: the two extractors disagree on this row. | RR 2.25 [1.15, 4.39] GRADE not reported Studies not reported |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Included meta-analysis: Giovacchini 2018 | RR 1.90 [1.47, 2.46] GRADE not reported 7 studies · 6750 participants |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Included meta-analysis: Xu 2017 condyle | RR .47 [.25, .86] GRADE not reported 5 studies · 823 participants |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Ugboko et al. 2000 | RR 2.24 [1.69, 2.97] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Leave one out: Mehra et al. 2019 | OR 0.32 [0.23, 0.45] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular angle fracture Leave-one-out: omitting Iida et al. 2005 | RR 2.19 [1.64, 2.92] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Included meta-analysis: Hanson 2004 | RR 2.8 [2.3, 3.5] GRADE not reported 6 studies · 3002 participants |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Time (RR): 2001–2005 | RR 2.54 [2.06, 3.12] GRADE not reported 5 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Trim and fill (RR) | RR 1.45 [1.03, 2.04] GRADE not reported 31 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Time (OR): 2001–2010 | OR 0.42 [0.21, 0.83] GRADE not reported 4 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Study quality (OR): Moderate quality | OR 0.20 [0.07, 0.58] GRADE not reported 7 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Fracture cause (OR): Not reported | OR 0.22 [0.08, 0.62] GRADE not reported 4 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Included meta-analysis: Armond 2017 angle | OR 3.83 [3.02, 4.85] GRADE not reported 28 studies · 13450 participants |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Time (RR): 2006–2010 | RR 1.48 [0.83, 2.63] GRADE not reported 4 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Included meta-analysis: Xu 2017 angle | RR 2.63 [2.15, 3.21] GRADE not reported 13 studies · 2399 participants |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular angle fracture Leave-one-out: omitting Naghipur et al. 2014 | RR 2.21 [1.65, 2.96] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Included meta-analysis: Armond 2017 condyle | OR .26 [.17, .40] GRADE not reported 13 studies · 3814 participants |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Unresolved: the two extractors disagree on this row. | RR 0.78 [0.27, 2.24] Very low Downgraded: risk of bias, imprecision, inconsistency 4 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture | OR 0.28 [0.19, 0.43] Very low Downgraded: risk of bias, imprecision, inconsistency 20 studies · 2495 participants |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Sample size (RR): Large (N > 300) | RR 2.01 [1.53, 2.65] GRADE not reported 11 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Duan & Zhang 2008 | RR 2.24 [1.66, 3.01] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Meisami et al. 2002 | RR 2.16 [1.62, 2.88] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Study quality (OR): Low quality | OR 0.39 [0.24, 0.64] GRADE not reported 5 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Sample size (OR): Large (N > 200) | OR 0.29 [0.16, 0.51] GRADE not reported 12 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Rajandram et al. 2013 | RR 2.12 [1.60, 2.81] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Included meta-analysis: Bezerra 2011 Unresolved: the two extractors disagree on this row. | 1.94 [1.60, 2.35] GRADE not reported 4 studies · 2533 participants |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Fracture cause (RR): Violence | RR 2.34 [1.69, 3.24] GRADE not reported 8 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Fracture cause (RR): RTA | RR 1.94 [1.12, 3.39] GRADE not reported 10 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Study quality (RR): Moderate quality | RR 2.36 [1.92, 2.90] GRADE not reported 10 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture | RR 2.18 [1.66, 2.87] Very low Downgraded: risk of bias, inconsistency, publication bias 21 studies · 14573 participants |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Included meta-analysis: Ruela 2017 | OR 3.16 [2.20, 4.54] GRADE not reported 16 studies · 7720 participants |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Antic et al. 2016 | RR 2.21 [1.65, 2.96] GRADE not reported 20 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular angle fracture Leave-one-out: omitting Ma'aita & Alwrikat 2000 | RR 2.18 [1.63, 2.92] GRADE not reported 20 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular angle fracture Leave-one-out: omitting Rajkumar et al. 2009 | RR 2.28 [1.73, 3.02] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture | OR 4.40 [3.29, 5.88] Very low Downgraded: risk of bias 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Time (OR): 2018–2026 | OR 0.25 [0.12, 0.51] GRADE not reported 10 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular angle fracture Leave-one-out: omitting Luria & Campbell 2013 | RR 2.19 [1.64, 2.93] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Fracture cause (RR): Not reported | RR 2.40 [1.55, 3.72] GRADE not reported 3 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular angle fracture Leave-one-out: omitting Tevepaugh & Dodson 1995 | RR 2.16 [1.63, 2.86] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Sample size (OR): Small (N < 200) | OR 0.26 [0.12, 0.59] GRADE not reported 8 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Thangavelu et al. 2010 | RR 2.18 [1.63, 2.91] GRADE not reported 20 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular angle fracture Leave-one-out: omitting Lee & Dodson 2000 | RR 2.2 [1.65, 2.94] GRADE not reported 20 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular angle fracture Leave-one-out: omitting Safdar & Meechan 1995 | RR 2.18 [1.63, 2.91] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Overall, supplementary sensitivity table Unresolved: the two extractors disagree on this row. | OR 0.28 [0.18, 0.42] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Halmos et al. 2004 | RR 2.13 [1.60, 2.84] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Time (RR): <2000 | RR 2.03 [1.41, 2.93] GRADE not reported 5 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Fuselier et al. 2002 | RR 2.19 [1.64, 2.94] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular condylar fracture Study quality (OR): High quality | OR 0.28 [0.13, 0.62] GRADE not reported 8 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Leave one out: Kasamatsu et al. 2003 | RR 2.15 [1.62, 2.85] GRADE not reported 20 studies |
| Mandibular third molars present | Mandibular third molars absent | Mandibular angle fracture Time (RR): 2011–2016 | RR 2.98 [1.17, 7.58] GRADE not reported 7 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Iida et al. 2004 | OR 0.27 [0.17, 0.42] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Mah et al. 2015 | OR 0.27 [0.17, 0.43] GRADE not reported 19 studies |
| Pell and Gregory position C third molar | None | Mandibular angle fracture Pell and Gregory position C | OR .64 [.42, .98] GRADE not reported Studies not reported |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Zhu et al. 2005 | OR 0.28 [0.18, 0.44] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Rozenbilds et al. 2026 | OR 0.26 [0.17, 0.4] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Lee et al. 2012 | OR 0.28 [0.18, 0.43] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Oh et al. 2006 | OR 0.26 [0.17, 0.41] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Patil 2012 | OR 0.28 [0.18, 0.44] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Nogami et al. 2018 | OR 0.29 [0.19, 0.45] GRADE not reported 19 studies |
| Pell and Gregory position C third molar | None | Mandibular condylar fracture Pell and Gregory position C | OR 1.57 [1.02, 2.40] GRADE not reported Studies not reported |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Mu et al. 2024 | OR 0.27 [0.17, 0.43] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Al-Harbawee et al. 2021 | OR 0.28 [0.18, 0.44] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Al-Sharani et al. 2021 | OR 0.27 [0.18, 0.43] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Choi et al. 2011 | OR 0.27 [0.17, 0.43] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Lee Y et al. 2019 | OR 0.27 [0.17, 0.42] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Duan & Zhang 2008 | OR 0.26 [0.17, 0.41] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Brucoli et al. 2020 | OR 0.29 [0.19, 0.45] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Venkatachalam et al. 2022 | OR 0.27 [0.17, 0.42] GRADE not reported 19 studies |
| Presence of mandibular third molars | Absence of mandibular third molars | Mandibular condylar fracture Leave-one-out: omitting Antic et al. 2016 | OR 0.26 [0.17, 0.4] GRADE not reported 19 studies |
| Third molar position A | None | Mandibular angle fracture Included meta-analysis: Armond 2017 angle | OR .60 [.45, .81] GRADE not reported Studies not reported |
| Third molar position A | None | Mandibular condylar fracture Included meta-analysis: Armond 2017 condyle | OR 1.32 [1.09, 1.61] GRADE not reported Studies not reported |
| Third molar position B | None | Mandibular angle fracture Included meta-analysis: Armond 2017 angle | OR 1.44 [1.06, 1.96] GRADE not reported Studies not reported |
| Third molar position B | None | Mandibular condylar fracture Included meta-analysis: Armond 2017 condyle | OR .69 [.49, .97] GRADE not reported Studies not reported |
| Third molar position I | None | Mandibular condylar fracture Included meta-analysis: Armond 2017 condyle | OR 1.37 [1.05, 1.77] GRADE not reported Studies not reported |
| Third molar position I | None | Mandibular angle fracture Included meta-analysis: Armond 2017 angle | OR .51 [.37, .71] GRADE not reported Studies not reported |
| Third molar position II | None | Mandibular condylar fracture Included meta-analysis: Armond 2017 condyle | OR .71 [.57, .87] GRADE not reported Studies not reported |
| Third molar position II | None | Mandibular angle fracture Included meta-analysis: Armond 2017 angle | OR 1.67 [1.36, 2.04] GRADE not reported Studies not reported |
| Third molar position II | None | Mandibular angle fracture Included meta-analysis: Giovacchini 2018 | OR 2.21 [1.69, 2.87] GRADE not reported Studies not reported |
| Third molar position C | None | Mandibular angle fracture Included meta-analysis: Giovacchini 2018 | OR 2.72 [1.78, 4.16] GRADE not reported Studies not reported |
| Third molar position III | None | Mandibular angle fracture Included meta-analysis: Giovacchini 2018 | OR 2.99 [2.12, 4.22] GRADE not reported Studies not reported |
Included primary studies 42
Open in Studies| Study | Year | Also included by | Outcomes it informs here | Trial data |
|---|---|---|---|---|
| Park et al. 2009 matched by author and year (probable) | NR | 1 other review | Mandibular angle fracture | not extracted yet |
| Al-Harbawee et al. 2021 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Al-Sharani et al. 2021 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Antic et al. 2016 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Armond 2017 (angle) Influence of third molars in mandibular fractures. Part 1: mandibular angle—a meta-analysis DOI:10.1016/j.ijom.2017.02.1264 | 2017 | this review only | not stated | not extracted yet |
| Armond 2017 (condyle) Influence of third molars in mandibular fractures. Part 2: mandibular condyle—a meta-analysis DOI:10.1016/j.ijom.2017.02.1265 | 2017 | this review only | not stated | not extracted yet |
| Bezerra 2011 Do third molars weaken the mandibular angle? DOI:10.4317/medoral.16970 | 2011 | this review only | not stated | not extracted yet |
| Brucoli et al. 2020 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Choi et al. 2011 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Duan and Zhang 2008 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Fuselier et al. 2002 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Gaddipati et al. 2014 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Giovacchini 2018 Association between third molar and mandibular angle fracture: A systematic review and meta-analysis DOI:10.1016/j.jcms.2017.12.011 | 2018 | this review only | not stated | not extracted yet |
| Halmos et al. 2004 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Hanson 2004 The association of third molars with mandibular angle fractures: a meta-analysis. PMID:14709255 | 2004 | this review only | not stated | not extracted yet |
| Iida et al. 2004 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Iida et al. 2005 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Kasamatsu et al. 2003 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Lee and Dodson 2000 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Lee Y et al. 2019 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Luria and Campbell 2013 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Ma’aita and Alwrikat 2000 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Machete 2016 matched by author and year (probable) | NR | this review only | not stated | not extracted yet |
| Mehra et al. 2019 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Meisami et al. 2002 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Naghipur et al. 2014 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Nogami et al. 2018 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Patil 2012 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Rahimi-Nedjat et al. 2016 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Rajandram et al. 2013 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Rajkumar et al. 2009 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Rozenbilds et al. 2026 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Ruela 2018 Does an Association Exist Between the Presence of Lower Third Molar and Mandibular Angle Fractures?: A Meta-Analysis DOI:10.1016/j.joms.2017.06.008 | 2018 | this review only | not stated | not extracted yet |
| Safdar and Meechan 1995 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Subhashraj 2009 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Tankersly and Abubaker 1995 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Tevepaugh and Dodson 1995 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Thangavelu et al. 2010 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Ugboko et al. 2000 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
| Venkatachalam et al. 2022 matched by author and year (probable) | NR | this review only | Mandibular angle fracture; Mandibular condylar fracture | not extracted yet |
| Xu 2017 How Is Third Molar Status Associated With the Occurrence of Mandibular Angle and Condyle Fractures? DOI:10.1016/j.joms.2017.03.021 | 2017 | this review only | not stated | not extracted yet |
| Yamada et al. 1998 matched by author and year (probable) | NR | this review only | Mandibular angle fracture | not extracted yet |
Overlap with other reviews
Reviews that include the same primary studies are not independent evidence. Shared counts match studies by PMID, DOI or NCT, and otherwise by author and year (a probable match). Only the non-Cochrane dental reviews have study lists, so overlap with Cochrane reviews is not counted yet.
| Review | Shared studies | Jaccard |
|---|---|---|
| The Association Between Food Insecurity and Adverse Health Outcomes in Children and Adolescents: An Umbrella Review. (2026) | 1 | 0.01 |
Review question
| Element | Planned (methods) | Found (results) |
|---|---|---|
| Population | Patients with mandibular fractures | Patients with mandibular fractures (about 40 thousand across 8 meta-analyses; about 16 thousand across 42 primary studies) |
| Intervention | Presence of mandibular third molars (exposure) | Presence of mandibular third molars (n=42 studies) |
| Comparison | Patients with mandibular fractures without third molars | Absence of mandibular third molars |
| Outcomes | Risk of mandibular angle fracture; risk of mandibular condylar fracture | Angle fracture (n=41 studies; 21 RR and 20 OR estimates); condylar fracture (n=23 studies; 20 OR and 4 RR estimates) |
| Study designs | Systematic reviews and meta-analyses reporting OR or RR with 95% CI (English, up to June 2026); updated meta-analysis of case-control or cross-sectional primary studies | 8 meta-analyses (6 angle, 2 condylar); 42 primary observational studies (case-control, cross-sectional, retrospective cohort) |
| Timing | Not specified | Not specified |