Dede has described his first goal for Brazil as a "dream" after helping his country to a 2-0 win over Zambia on Tuesday.
The Cruzeiro defender got on the scoresheet after 66 minutes, heading home a Neymar free-kick to double Brazil's lead after Oscar's goal seven minutes earlier.
The 25-year-old admitted that "it was a dream" to finally score his first goal for Brazil and targeted further appearances under Luiz Felipe Scolari.
"I am very happy to score my first goal with the national team shirt," he said.
"I had it in my head that this game was the biggest game of my life. To be part of the Selecao means a lot to a player. Moreover, the World Cup is fast-approaching. I am fully focused and very thankful for being here.
"I think I had a pretty solid game and even scored a goal. If I manage to keep it up then I think I can reach my goals. I'm relieved but I have to keep working every day in order to stay in the group."
Brazil have won 10 of their last 11 games in all competitions, with Scolari praising the development of his team.
"I think if we were to observe the results and progress of the team, it was a great year," he said.
"After those initial games where we were in search of tactical evolution and finding the parts to make this work, we had it all."
Scolari also hinted that there could be surprise inclusions in the squads for his next two friendlies prior to the FIFA World Cup, depending on players' club commitments in Brazil.
"Maybe I have to call one or another name that I have not imagined yet," he said. "I'll probably call one or two players who are not here."
|Coach: Luiz Felipe Scolari|
for Alexandre Pato 46'
for Lucas Moura 46'
for Ramires 46'
for Paulinho 63'
for David Luiz 70'
for Neymar 80'
|Kenya 0 Ethiopia 0 (agg 0-2): Hosts sent out of CHAN qualifiers after second penalty miss|
|Dortmund put 17 past Olympians, Bremen hand out thrashing|
|Dinamo Zagreb confirm arrests of coach and club president|
|I didn´t know who Wimbledon guest Klopp was - Brown|
|LeBron James backs Liverpool captain Henderson for FIFA 16 cover.|
|Ramos: I am not negotiating with anyone|
|Valencia complete Mina swoop|
|United States v Japan: US seek final redemption|
|Hanousek consigns Celtic to defeat|
|Roma confirm Dzeko interest|
|Arsenal forward Podolski completes Galatasaray switch|
|Warm Dortmund welcome delights Tuchel|
|Silva vows to fight for Madrid place|
|Mancini hints at Shaqiri and Santon departures|
|Bojan raring to go after return from injury|
|Babel backs Firmino to shine at Liverpool|
|Falcao must wait to impress, warns Chelsea favourite|
|Bartomeu: Deal in place for Turan|
|Parejo re-signs with Valencia|
|MLS Review: Sounders return to winning ways|
|Klinsmann unhappy with USA performance|
|High hopes for Paraguay - Diaz|
|Gareca: More to come from Peru|
|Gerrard had European offers|
|Argentina out to spoil Chile´s party - Martino|
|Sampaoli: Chile won´t change style|
|Di Maria will come good at United - Rojo|
|Peru 2 Paraguay 0: Gareca´s men finish third at Copa|
|United States 4 Guatemala 0: Klinsmann´s men win comfortably|
|´I’d prefer no-one to know my name´ - Bassett|
|Matthews completes Sunderland move|
|Podolski set for Galatasaray medical|
|Gundogan inspires Dortmund victory|
|Inter confirm Montoya capture|
|Murillo joins Inter, as Kuzmanovic and Obi depart|
|Falcao signing not a risk, says former Chelsea star|
|Deeney agrees new Watford deal|
|Confidence and service the key to Falcao success at Chelsea|
|No bids for ´Chelsea target´ Baba, claim Augsburg|
|Derby swoop for Ince|
|Fiorentina consider legal action over Salah ´no-show´|
|Chelsea the team to beat in the Premier League, says Neville|
|Storari exits Juve for Cagliari|
|UEFA removes FFP restrictions on Man City and PSG|
|West Brom hope for new owners within the month|
|Chelsea agree loan deal for Falcao|
|Kuyt eyes trophies on Feyenoord return|
|Chile v Argentina: History beckons ahead of Copa America final|
|Wallace extends Monaco loan|
|Mihajlovic wants to instill fear factor at Milan|
|Mignolet improving at Liverpool - Grobbelaar|
|Mumbai City name Anelka player-manager|
|Olivia the parrot predicts Japan to win Women´s World Cup|
|Lusitans coach blasts Bilic´s ´lack of respect´|
|Sakho eyes more Europa League wins|
|Gareca wants Peru to keep building|
|Chile ´no chance´ if Argentina produce their best - Diaz|
|Ocampos joins Marseille permanently|
|Europa League Review: Cloud-nine Brondby ignite opening round|