教授就任後、米国補綴学会ACPより、歯科医療・健康科学の発展への貢献を讃えられ、日本人初の最優秀学術賞(Researcher/Clinician Award)の栄誉を得る。さらに、2012年、インプラント分野の学術賞の一つ William R. Laney 最高科学論文賞受賞を米国・国際インプラント学会Academy of Osseointegrationより日本人初で受賞。インプラント、再生医療、生体材料、歯科補綴学、口腔機能学の分野で、原著論文130本以上を含む総出版数は400以上。獲得インパクトファクターの総計約400。インプラント技術や生体材料に関する特許を多数取得。小川の研究チームで研鑽を積んだ研究者や学生はこれまで、国内外の権威ある学会から40以上の学術科学賞を受賞している。
「インプラントの光機能化」とは、小川隆広とUCLA歯学部 骨・インプラントサイエンスチーム(Laboratory for Bone and Implant Sciences (LBIS))が推進するインプラント治療における最先端技術。インプラントに光をあてることによって、その表面を活性化させる技術。インプラントが骨と接着する性能を高めることが実証されている。(詳細は「インプラントの光機能化」を参照)
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