Nonsurgical Endodontic Management of a Molar-Incisor Malformation-affected Mandibular First Molar: A Case Report

Molar‐incisor malformation: Eight new cases and a review of the literature

“…Since its initial description by Witt et al and the subsequent larger cases series by Lee et al, several reports and case series have been published documenting additional MIM cases . In the largest case series to date, Wright et al referred to this new dental phenotype as molar root‐incisor malformation.…”

“…If extracted at the appropriate time, the healthy second molars could replace the first molars . Conservative pulp treatment may be effective, as may traditional endodontic therapy . Yue and Kim reported successfully treating a 13‐year‐old male patient with an MIM‐affected mandibular first molar with endodontic therapy.…”

“…Since its initial description by Witt et al 6 and the subsequent larger cases series by Lee et al, 7 several reports and case series have been published documenting additional MIM cases. [8][9][10][11][12][13][14][15][16][17] In the largest case series to date, Wright et al 8 referred to this new dental phenotype as molar root-incisor malformation. Given the symmetric clinical presentation in their series and previously reported cases as well as the radiographic similarities to DD-1b, Qari et al 2 proposed the nomenclature of symmetric multiquadrant isolated dentin dysplasia (SMIDD) in 2017.…”

“…Later, Lee et al described 12 cases of this dental abnormality, which they named molar‐incisor malformation (MIM). Since its initial description, several reports and series have documented additional MIM cases involving the permanent first molars, permanent central incisors, and also other teeth …”

“…Since its initial description, several reports and series have documented additional MIM cases involving the permanent first molars, permanent central incisors, and also other teeth. 2,[8][9][10][11][12][13][14][15][16][17] While the first report of MIM appeared in 2014, it is possible that this condition went unrecognized prior to this. There have been reports of cases diagnosed as DD-1 with an atypical clinical presentation and reports without a family history noted.…”